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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Pyrazole, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Pyrazole impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Pyrazole-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Pyrazole Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"1-(Methyl-d3)-4-nitro-3-(2,2,3,3,3-D5-propyl)-1H-pyrazole-5... Stable Isotopes CS-T-82548 1175993-00-6 Enquire
1-(Methyl)-4-nitro-3-(2,2,3,3,3-D5-propyl)-1H-pyrazole-5-car... Stable Isotopes CS-T-82232 1175992-94-5 Enquire
1-(Methyl-d3)-4-nitro-1H-pyrazole Stable Isotopes CS-O-37622 1447606-92-9 Enquire
1-(Methyl-D3)-4-nitro-3-propyl-1H-pyrazole-5-carboxylic Acid Stable Isotopes CS-T-80679 526203-29-2 Enquire
1,5-Dimethyl-1H-pyrazole-4-sulfonamide-D3 Stable Isotopes CS-T-102408 88398-55-4(Unlabelled) Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid Ethyl Ester-... Stable Isotopes CS-T-102828 133261-07-1(Unlabelled) Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid-d3 Stable Isotopes CS-T-102829 1046784-60-4 Enquire
1-Methyl-4-pyrazoleboronic Acid-d3 Stable Isotopes CS-T-102227 Not Available Enquire
3-(4-Chlorophenyl)-4,5-dihydro-N'-(1-iminoethyl)-4-phenyl-N-... Stable Isotopes CS-T-101717 Not Available Enquire
3,4-Dimethylpyrazole Phosphate-13C Stable Isotopes CS-T-101072 Not Available Enquire
3-Amino-5-methylpyrazole 13C4,15N2 Stable Isotopes CS-EK-00994 31230-17-8 unlabeled Enquire
3-Amino-5-methylpyrazole 13C4,15N2 Stable Isotopes CS-CX-00348 31230-17-8 (Unlabeled) Enquire
4-(2-Bromoethyl)-3,5-dimethyl-1H-pyrazole 13C5,15N2 Stable Isotopes CS-EK-01201 83467-28-1 unlabeled Enquire
4-[5,6-Dihydro-2-[3-methyl-1-(1-methylethyl)-1H-1,2,4-triazo... Stable Isotopes CS-T-101535 Not Available Enquire
4-Bromo-1-(2-chloroethyl)-1H-pyrazole-D4 Stable Isotopes CS-T-100738 Not Available Enquire
b-Cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl... Stable Isotopes CS-T-96435 Not Available Enquire
Mixture of (1,3-Dimethylpyrazole-D3 + 1,5-Dimethylpyrazole-D... Stable Isotopes CS-T-102410 Not Available Enquire
N-(2,3-Dimethylphenyl)-3,5-dimethyl-1-(phenylmethyl)-1H-pyra... Stable Isotopes CS-T-100396 Not Available Enquire
N,N’-Bis-Boc-1-guanylpyrazole-13C,15N2 Stable Isotopes CS-T-101818 1346606-42-5 Enquire
N-methyl-4-(2-Bromoethyl)-3,5-dimethyl-1H-pyrazole 13C7 Stable Isotopes CS-EK-00874 1007505-04-5 unlabeled Enquire
Pyrazole N-Demethyl Sildenafil-d3 Stable Isotopes CS-T-85129 1185044-03-4 Enquire
Sulfapyrazole 13C6 Stable Isotopes CS-W-00309 1420043-51-1 Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Benzyl-3-methyl-5-aminopyrazole Hydrochloride API Standards CS-T-05780 1195671-98-7 Enquire
1-Ethyl-3-methyl-4-nitro-1H-pyrazole API Standards CS-M-45611 1001500-32-8 Enquire
2-Methyl-5-thiophen-2-yl-2H-pyrazole-3-carboxylic acid API Standards CS-M-23257 871825-56-8 Enquire
3-(4-Methylphenyl)-1H-pyrazole API Standards CS-M-33779 59843-75-3 Enquire
3-Aminopyrazole Hydrochloride API Standards CS-T-48062 34045-29-9 Enquire
3-bromo-4-methyl-1H-pyrazole API Standards CS-EM-03259 5932-20-7 Enquire
3-Methyl-1-propyl-1H-pyrazole-4-sulfonyl chloride API Standards CS-M-11478 1006453-67-3 Enquire
3-Tetrazol-1-yl-1H-pyrazole-4-carboxylic acid API Standards CS-M-22358 1011355-63-7 Enquire
4-(2-Chloro-6-fluorobenzyl)-3,5-dimethyl-1H-pyrazole API Standards CS-M-30666 387352-96-7 Enquire
5-(3-Chlorophenyl)-1H-pyrazole-3-carboxylic acid API Standards CS-M-54437 595610-50-7 Enquire
5-Chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxyl... API Standards CS-M-31260 128455-63-0 Enquire
5-Chloro-1-methyl-3-phenyl-1H-pyrazole-4-carbaldehyde API Standards CS-M-31302 883-38-5 Enquire
5-Methyl-3-phenyl-1H-pyrazole API Standards CS-M-14461 3347-62-4 Enquire


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(4,6-dimethylpyrimidin-2-yl)-3-methyl-1H-pyrazole-5-carbox... Metabolites CS-O-33740 Not Available Enquire
3-(Difluoromethyl)-1-β-D-glucopyranosyl-N-(3′,4′,5′-trifluor... Metabolites CS-ED-42077 2056235-51-7 Enquire
3-(Difluoromethyl)-N-(3',4',5'-trifluoro[1,1'-biphenyl]-2-yl... Metabolites CS-TB-15936 2056235-52-8 Enquire
N-Methylpyrazole-4-carboxamide Metabolites CS-O-15650 1154383-52-4 In Stock
Pyrazole 10 Metabolites CS-B-00345 373607-06-8 Enquire
Pyrazole 25 Metabolites CS-B-00344 936134-04-2 Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"1-(1-Ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan... Impurities CS-M-24044 1029716-44-6 Enquire
"1-(2,4-Dichlorophenyl)-4-methyl-5-(4-nitrophenyl)-1H-pyrazo... Impurities CS-T-52686 221385-24-6 Enquire
"1-(2,4-Dichlorophenyl)-4-methyl-5-phenyl-1H-pyrazole-3-carb... Impurities CS-T-52688 221385-23-5 Enquire
"1-(2,4-Dichlorophenyl)-5-(4-bromophenyl)-4-methyl-N-(piperi... Impurities CS-T-17764 18232-63-5 Enquire
"1-(2-chloro-6-fluorobenzyl)-3-(3,4-dimethoxyphenyl)-1H-pyra... Impurities CS-Q-00042 1007192-89-3 Enquire
"1-(2-Chloro-ethyl)-3,5-dimethyl-1H-pyrazole" Impurities CS-M-07012 38460-08-1 Enquire
"1-(oxolan-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2... Impurities CS-DL-00780 1029715-63-6 Enquire
"1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde" Impurities CS-M-16640 2644-93-1 Enquire
"1,3-Dimethyl-1H-pyrazole-4-carbohydrazide" Impurities CS-M-25024 512810-25-2 Enquire
"1,3-Diphenyl-1H-pyrazole-4-carbaldehyde" Impurities CS-M-16643 21487-45-6 Enquire
"1,5-Dimethyl-1H-pyrazole-4-boronic acid,pinacol ester" Impurities CS-DL-00851 1036991-40-8 Enquire
"1,5-Dimethyl-1H-pyrazole-4-carbonyl chloride" Impurities CS-M-28477 851973-08-5 Enquire
"1-[2-(oxan-2-yloxy)ethyl]-4-(tetramethyl-1,3,2-dioxaborolan... Impurities CS-EM-02801 956907-34-9 Enquire
"1-[3-(Chloromethyl)phenyl]-3,5-dimethyl-1H-pyrazole hydroch... Impurities CS-M-29192 1185298-82-1 Enquire
"1-[4-(4-Fluorophenyl)-2-thiazolyl]-3,5-dimethyl-1H-pyrazole... Impurities CS-T-54906 1172940-17-8 Enquire
"1-Allyl-4-bromo-3,5-dimethyl-1H-pyrazole" Impurities CS-M-26032 13369-76-1 Enquire
"1-Benzyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde" Impurities CS-M-07058 2644-94-2 Enquire
"1-Benzyl-4-bromo-3,5-dimethyl-1H-pyrazole hydrochloride" Impurities CS-M-47854 51108-53-3 Enquire
"2,4-Dimethyl-2H-pyrazole-3-sulfonyl chloride" Impurities CS-M-50841 1174834-52-6 Enquire
"3-(1,3-Benzodioxol-5-yl)-1H-pyrazole" Impurities CS-M-47589 141791-06-2 Enquire
"3-(3,4-Dimethoxyphenyl)-1H-pyrazole" Impurities CS-M-47044 154257-70-2 Enquire
"3,5-Bis(perfluoropropyl)pyrazole" Impurities CS-M-07724 1030269-34-1 Enquire
"3,5-Diacetylpyrazole" Impurities CS-T-52391 98276-70-1 Enquire
"3,5-Dimethyl-1-phenyl-1H-pyrazole" Impurities CS-M-28586 1131-16-4 Enquire
"3,5-Dimethyl-1-phenyl-1H-pyrazole-4-carboxylic acid" Impurities CS-M-28144 61226-19-5 Enquire
"3,5-Dimethylpyrazole Phosphate" Impurities CS-T-53684 1160634-41-2 Enquire
"3-Amino-1,4-dimethylpyrazole" Impurities CS-T-02501 85485-61-6 Enquire
"4-(1,3-Benzodioxol-5-yl)-3-methyl-1H-pyrazole" Impurities CS-M-26442 667400-03-5 Enquire
"4-(2-Chloroethyl)-3,5-dimethyl-1H-pyrazole" Impurities CS-M-26343 79379-05-8 Enquire
"4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-([2-(trim... Impurities CS-DL-00635 894807-98-8 Enquire
"4-Bromo-1-ethyl-3,5-dimethyl-1H-pyrazole" Impurities CS-M-24876 51108-51-1 Enquire
"4-Bromo-3,5-dimethyl-1-(3-methylbutyl)-1H-pyrazole" Impurities CS-M-26030 1171717-09-1 Enquire
"4-Fluoro-3,5-dimethyl-1H-pyrazole" Impurities CS-M-29086 57160-76-6 Enquire
"5-(2,4-Dichloro-5-fluorophenyl)-1H-pyrazole-3-carboxylic ac... Impurities CS-M-54447 1119299-75-0 Enquire
"5-(3,4-Dimethoxy-phenyl)-2H-pyrazole-3-carboxylic acid" Impurities CS-M-07235 909857-88-1 Enquire
"5,6-Dihydro-4H-pyrrolo[1,2-b]pyrazole" Impurities CS-T-53169 107862-65-7 Enquire
"5-Benzo[1,3]dioxol-5-yl-2H-pyrazole-3-carboxylic acid" Impurities CS-M-09276 890621-48-4 Enquire
"Ethyl 1-(4-methoxyphenyl)-3,5-dimethyl-1H-pyrazole-4-carbox... Impurities CS-M-33503 849416-70-2 Enquire
"Ethyl 1-(4-phenyl-1,3-thiazol-2-yl)-5-(trifluoromethyl)-1H-... Impurities CS-M-32824 159885-61-7 Enquire
"Ethyl 1-[4-(4-chlorophenyl)-1,3-thiazol-2-yl]-5-(trifluorom... Impurities CS-M-32565 159885-63-9 Enquire
"Methyl 1,5-dimethyl-1H-pyrazole-3-carboxylate" Impurities CS-M-28114 10250-61-0 Enquire
"tert-Butyl 3-Amino-4,6-dihydropyrrolo-[3,4-c]-pyrazole-5(1H... Impurities CS-M-52384 398491-59-3 Enquire
"tert-butyl 3-methyl-1H,4H,5H,6H-pyrrolo[3,4-c]pyrazole-5-ca... Impurities CS-EM-02978 951127-35-8 Enquire
(E)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-pyrazole... Impurities CS-T-13616 52632-17-4 Enquire
1 - Methyl - 3 - trifluoromethylpyrazole - 5 - boronic acid Impurities CS-DV-00480 344591-91-9 Enquire
1-(2-Bromo-ethyl)-1H-pyrazole Impurities CS-M-07294 119291-22-4 Enquire
1-(2-Hydroxy-2-methylpropyl)-5-methyl-3-oxo-2-phenyl-2,3-dih... Impurities CS-DJ-00177 913376-56-4 Enquire
1-(3,4-Dichlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic... Impurities CS-M-31059 477710-54-6 Enquire
1-(4-Fluoro-phenyl)-1H-pyrazole-4-carbaldehyde Impurities CS-M-09477 890652-03-6 Enquire
1-(4-Fluoro-phenyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde Impurities CS-M-22312 890626-54-7 Enquire
1-(4-Fluorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic aci... Impurities CS-M-31057 288251-63-8 Enquire
1-(6-Amino-9Beta-D-ribofuranosyl-9H-purin-2-yl)-1H-pyrazole-... Impurities CS-T-48081 313348-16-2 Enquire
1-(Methyl-d3)-4-nitro-1H-pyrazole Impurities CS-AC-07936 1447606-92-9 Enquire
1-(oxan-2-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyr... Impurities CS-EM-02808 1003846-21-6 Enquire
1-(oxetan-3-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-p... Impurities CS-EM-02207 1339890-99-1 Enquire
1-(Tetrahydro-1,1-dioxido-3-thienyl)-4-(4,4,5,5-tetramethyl-... Impurities CS-T-61816 1233526-31-2 Enquire
1-[(Methylsulfonyl)methyl]-4-(4,4,5,5-tetramethyl-1,3,2-diox... Impurities CS-T-58624 1282530-99-7 Enquire
1-[4-(4-Chlorophenyl)-1,3-thiazol-2-yl]-5-(trifluoromethyl)-... Impurities CS-M-32826 159885-82-2 Enquire
1-[6-Amino-9-(3,4-dihydroxy-5-hydroxymethyl-tetrahydrofuran-... Impurities CS-O-47370 Not Available Enquire
1-Acetyl-3-[1-(heptafluoropropoxy)-1,2,2,2-tetrafluoroethyl]... Impurities CS-CE-00236 231301-28-3 Enquire
1-Acetyl-4-bromo-3(5)-[1-heptafluoropropoxy)tetrafluoroethyl... Impurities CS-CE-00252 231301-30-7 Enquire
1-Acetyl-4-chloro-3-(heptafluoropropyl)-5-methyl-1H-pyrazole Impurities CS-CE-00220 231301-25-0 Enquire
1-Allyl-3-methyl-1H-pyrazole-4-carbaldehyde Impurities CS-M-08883 899709-47-8 Enquire
1-BENZYL-1H-PYRAZOLE-4-BORONIC ACID PINACOL ESTER Impurities CS-DL-00932 761446-45-1 Enquire
1-Benzyl-4-bromo-1H-pyrazole Impurities CS-M-26031 50877-41-3 Enquire
1-Cyclobutyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)... Impurities CS-T-73212 1002309-48-9 Enquire
1-Cyclopropylmethyl-1H-pyrazole-4-boronic acid, pinacol este... Impurities CS-T-73749 1000801-75-1 Enquire
1-Difluoromethyl-1H-pyrazole-3-carboxylic acid Impurities CS-M-09161 925179-02-8 Enquire
1-Ethyl-1H-pyrazole-4-carbaldehyde Impurities CS-M-09089 304903-10-4 Enquire
1-Ethyl-1H-pyrazole-5-carbonyl chloride Impurities CS-M-28490 1006471-20-0 Enquire
1-Ethyl-3-methyl-1H-pyrazole-4-carbaldehyde Impurities CS-M-16020 676348-38-2 Enquire
1-Ethyl-4-nitro-1H-pyrazole-3-carboxylic acid Impurities CS-M-26604 401906-11-4 Enquire
1H-pyrazole-3-carboximidamide hydrochloride Impurities CS-TA-55947 166197-22-4 Enquire
1-Isopropyl-1H-pyrazole-5-boronic acid Impurities CS-DL-00627 839714-33-9 Enquire
1-Methyl-3-(trifluoromethyl)-1H-pyrazole Impurities CS-DL-00809 154471-65-5 Enquire
1-Methyl-3-(trifluoromethyl)-5-[3-(trifluoro-methyl)phenoxy]... Impurities CS-M-30164 158712-22-2 Enquire
1-Methyl-3-phenyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid Impurities CS-M-32372 25252-47-5 Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid Ethyl Ester Impurities CS-T-34343 133261-07-1 Enquire
1-Methyl-4-nitro-1H-pyrazole Impurities CS-M-28958 82208-47-7 Enquire
1-Methyl-4-nitro-3-propylpyrazole-5-carboxamide Impurities CS-T-34289 139756-01-7 Enquire
1-Phenyl-1H-pyrazole-4-carbaldehyde Impurities CS-M-09348 54605-72-0 Enquire
1-Phenyl-3-(2-thienyl)-1H-pyrazole-4-carbaldehyde Impurities CS-M-26639 210825-11-9 Enquire
1-phenyl-5-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazole Impurities CS-O-40866 515845-18-8 Enquire
2-Chloro-5-(1-ethyl-5-hydroxy-1H-pyrazole-4-carbonyl)-4-oxaz... Impurities CS-DU-00281 1231624-99-9 Enquire
2-Difluoromethyl-2H-pyrazole-3-carboxylic acid Impurities CS-M-09162 925199-97-9 Enquire
2-Ethanesulfonyl-5-(1-ethyl-5-hydroxy-1H-pyrazole-4-carbonyl... Impurities CS-DU-00272 1231644-49-7 Enquire
3-(2-Furyl)-1H-pyrazole-5-carbohydrazide Impurities CS-M-26215 92352-24-4 Enquire
3-(2-Hydroxy-4-methoxyphenyl)-4-(4-carboxyphenoxy)-1H-pyrazo... Impurities CS-T-27331 394228-95-6 Enquire
3-(3,3,3-trifluoro-2,2-dimethylpropoxy)-1H-pyrazole Impurities CS-O-45076 2229861-15-6 In Stock
3-(3-Bromophenyl)-1H-pyrazole-4-carboxylic acid Impurities CS-M-26641 879996-70-0 Enquire
3-(3-Nitrophenyl)-1H-pyrazole-4-carbaldehyde Impurities CS-M-26316 26033-25-0 Enquire
3-(4-Bromophenyl)-1H-pyrazole-4-carboxylic acid Impurities CS-M-26994 618383-49-6 Enquire
3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehyde Impurities CS-M-08107 350997-67-0 Enquire
3-(4-Ethylphenyl)-1H-pyrazole-5-carboxylic acid Impurities CS-M-26289 890591-84-1 Enquire
3-(4-Fluorophenyl)-1H-pyrazole-4-carbaldehyde Impurities CS-M-16781 306936-57-2 Enquire
3-(4-Fluorophenyl)-1H-pyrazole-4-carboxylic acid Impurities CS-M-26991 618383-44-1 Enquire
3-Amino-4-bromo-2-methylpyrazole Impurities CS-T-02020 105675-85-2 Enquire
3-Amino-4-bromo-5-phenylpyrazole Impurities CS-T-02024 2845-78-5 Enquire
3-Amino-4-bromopyrazole Impurities CS-T-02031 16461-94-2 Enquire
3-Amino-4-cyano-5-(4-phenoxyphenyl)pyrazole Impurities CS-T-02342 330792-70-6 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"1-(2,2-Diethoxyethyl)pyrazole-4-boronic acid" Intermediates CS-T-91102 1217501-20-6 Enquire
"1-(2,2-Diethoxyethyl)pyrazole-4-boronic acid, pinacol ester... Intermediates CS-T-90135 1256359-25-7 Enquire
"1-(2,4-dichlorophenyl)-5-phenyl-1H-pyrazole-3-carboxylic ac... Intermediates CS-EL-08978 477712-39-3 Enquire
"1-(2,5-dichlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxyli... Intermediates CS-EL-05015 956544-14-2 Enquire
"1-(2,5-dichlorophenyl)-5-(4-fluorophenyl)-4-(phenylsulfonyl... Intermediates CS-EL-15303 318951-71-2 Enquire
"1-(2-bromophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic aci... Intermediates CS-EL-08816 959578-21-3 Enquire
"1-(2-Methoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborola... Intermediates CS-M-56975 847818-71-7 Enquire
"1-(3,4-dichlorophenyl)-3-(4-fluorophenyl)-5-(2,3,4-trimetho... Intermediates CS-EL-16590 329778-82-7 Enquire
"1-(3,5-Dichlorophenyl)-5-propyl-1H-pyrazole-4-carboxylic ac... Intermediates CS-EL-09562 306936-60-7 Enquire
"1-(3-bromophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic aci... Intermediates CS-EL-07749 959582-69-5 Enquire
"1-(3-chlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde" Intermediates CS-EL-11816 294877-36-4 Enquire
"1-(3-chlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic ac... Intermediates CS-EL-13401 113808-90-5 Enquire
"1-(3-chlorophenyl)-5-(3,4-dichlorophenyl)-1H-pyrazole-3-car... Intermediates CS-EL-06561 477712-31-5 Enquire
"1-(4-Acetylphenyl)-4-bromo-3,5-dimethylpyrazole" Intermediates CS-T-65325 1187385-98-3 Enquire
"1-(4-chlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde" Intermediates CS-EL-13098 54605-74-2 Enquire
"1-(4-chlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic ac... Intermediates CS-EL-11693 113808-87-0 Enquire
"1-(oxan-2-yl)-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-py... Intermediates CS-EL-00277 903550-26-5 Enquire
"1-(Phenylsulfonyl)pyrazole-4-boronic acid, pinacol ester" Intermediates CS-AC-06702 1073372-04-9 Enquire
"1-(prop-2-en-1-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-... Intermediates CS-EL-00365 1000801-78-4 Enquire
"1-(tert-Butyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-... Intermediates CS-DV-00578 1256359-15-5 Enquire
"1,3,5-trimethyl-1H-pyrazole-4-carbaldehyde oxime" Intermediates CS-EL-29640 1415313-77-7 Enquire
"1,3,5-trimethyl-1H-pyrazole-4-carbonitrile" Intermediates CS-EL-07954 108161-13-3 Enquire
"1,3,5-trimethyl-1H-pyrazole-4-carboxamide" Intermediates CS-EL-29609 861586-14-3 Enquire
"1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid" Intermediates CS-M-16677 1125-29-7 Enquire
"1,3-bis(4-chlorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole" Intermediates CS-EL-03818 7245-52-5 Enquire
"1,3-bis(4-fluorophenyl)-5-(4-methylphenyl)-4,5-dihydro-1H-p... Intermediates CS-EL-04259 343374-71-0 Enquire
"1,3-Dimethyl-1,6-dihydropyrazolo[3,4-c]pyrazole" Intermediates CS-M-30644 446276-19-3 Enquire
"1,3-Dimethyl-1H-pyrazole-4-carbaldehyde" Intermediates CS-M-07022 25016-12-0 Enquire
"1,3-Dimethyl-1H-pyrazole-4-sulfonyl chloride" Intermediates CS-M-10116 89501-93-9 Enquire
"1,3-Dimethyl-1H-pyrazole-5-carboxamide" Intermediates CS-EL-03388 136678-93-8 Enquire
"1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid" Intermediates CS-EL-03708 25252-46-4 Enquire
"1,3-dimethyl-4-[(E)-2-nitroethenyl]-5-phenoxy-1H-pyrazole" Intermediates CS-EL-00542 477710-91-1 Enquire
"1,3-Dimethyl-4-nitro-1H-pyrazole" Intermediates CS-AC-10481 3920-38-5 Enquire
"1,3-Dimethyl-5-(hydroxymethyl)-1H-pyrazole" Intermediates CS-EL-02220 57012-20-1 Enquire
"1,3-dimethyl-5-[3-(trifluoromethyl)phenoxy]-1H-pyrazole-4-c... Intermediates CS-EL-29111 956607-11-7 Enquire
"1,3-Dimethylpyrazole" Intermediates CS-T-20565 694-48-4 Enquire
"1,3-Dimethylpyrazole-4-boronic acid" Intermediates CS-DV-00731 1146616-03-6 Enquire
"1,3-Dimethylpyrazole-5-boronic acid pinacol ester" Intermediates CS-AC-06592 847818-79-5 Enquire
"1,3-Diphenyl-1H-pyrazole-4-carboxylic acid" Intermediates CS-M-16707 77169-12-1 Enquire
"1,4,5,6,7,8-hexahydrocyclohepta[c]pyrazole-3-carboxylic aci... Intermediates CS-Q-01903 856256-63-8 Enquire
"1,4,5,6-tetrahydro-cyclopentapyrazole-3-carbonitrile" Intermediates CS-DV-00745 851776-29-9 Enquire
"1,4,6,7-Tetrahydro-3-(trifluoromethyl)pyrano-[4,3-c]-pyrazo... Intermediates CS-AC-09542 1022931-45-8 Enquire
"1,4-Dihydro-chromeno[4,3-c]pyrazole-3-carboxylic acid" Intermediates CS-M-10780 694507-52-3 Enquire
"1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl... Intermediates CS-AC-05168 1047644-76-7 Enquire
"1,4-Dimethylpyrazole" Intermediates CS-M-57825 1072-68-0 Enquire
"1,5-bis(4-chlorophenyl)-1H-pyrazole-3-carboxylic acid" Intermediates CS-EL-01022 477712-01-9 Enquire
"1,5-Dimethyl-1H-pyrazole-3-carboxylic acid" Intermediates CS-M-17010 5744-59-2 Enquire
"1,5-Dimethyl-1H-pyrazole-4-carboxylic acid" Intermediates CS-M-05826 31728-75-3 Enquire
"1,5-Dimethyl-1H-pyrazole-4-sulfonyl chloride" Intermediates CS-M-11120 1005613-94-4 Enquire
"1,5-Dimethyl-3-(hydroxymethyl)-1H-pyrazole" Intermediates CS-EL-08477 153912-60-8 Enquire
"1,5-Dimethyl-3-(trifluoromethyl)pyrazole" Intermediates CS-AC-09420 79080-31-2 Enquire
"1,5-dimethyl-3-nitro-1H-pyrazole" Intermediates CS-Q-01782 59376-16-8 Enquire
"1,5-Dimethyl-3-pyrrolidin-2-yl-1H-pyrazole" Intermediates CS-M-28976 1170223-69-4 Enquire
"1,5-Dimethylpyrazole" Intermediates CS-M-14598 694-31-5 Enquire
"1,5-Dimethylpyrazole-3-carbaldehyde" Intermediates CS-M-14697 25016-10-8 Enquire
"1,5-Dimethylpyrazole-4-boronic acid" Intermediates CS-AC-05356 1204333-57-2 Enquire
"1-[(2,4-dichlorophenyl)sulfonyl]-4-(3,4-dimethoxyphenyl)-3-... Intermediates CS-EL-16814 321526-11-8 Enquire
"1-[(4-Chlorophenyl)methyl]-1H-pyrazole-4,5-diamine Sulfate" Intermediates CS-T-51035 157469-74-4 Enquire
"1-[1,3]-Dioxolan-2-ylmethyl-1h-pyrazole-4-boronic acid" Intermediates CS-AC-05380 947533-27-9 Enquire
"1-[2-(azetidin-1-yl)ethyl]-4-(tetramethyl-1,3,2-dioxaborola... Intermediates CS-EM-00679 1422126-12-2 Enquire
"1-[2-chloro-4-(trifluoromethyl)phenyl]-5-(3,4-dichloropheny... Intermediates CS-EL-14061 400088-10-0 Enquire
"1-[4-(3,4-dichlorophenyl)-1,3-thiazol-2-yl]-5-(trifluoromet... Intermediates CS-EL-17647 955976-66-6 Enquire
"1-Allyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde" Intermediates CS-M-45977 1155595-91-7 Enquire
"1-Benzoyl-3,5-bis(perfluorohexyl)pyrazole" Intermediates CS-CE-00123 230295-10-0 Enquire
"1-benzyl-3,5-dibromo-4-nitro-1H-pyrazole" Intermediates CS-EL-07797 155601-03-9 Enquire
"1-Boc-3,5-dimethylpyrazole-4-boronic Acid Pinacol Ester" Intermediates CS-T-67324 1073354-70-7 Enquire
"1-BOC-4-bromo-3,5-dimethylpyrazole" Intermediates CS-AC-07595 1040276-87-6 Enquire
"1-Butyl-1H-pyrazole-4-boronic acid, pinacol ester" Intermediates CS-AC-05616 1488423-70-6 Enquire
"1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde" Intermediates CS-M-09311 701911-46-8 Enquire
"1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carboxylic acid" Intermediates CS-M-10877 108444-24-2 Enquire
"1-Isobutyl-1H-pyrazole-5-boronic acid, pinacol ester" Intermediates CS-AC-05706 847818-75-1 Enquire
"1-Isobutylpyrazole-4-boronic acid, pinacol ester" Intermediates CS-AC-06640 827614-66-4 Enquire
"1-Isopropyl-1H-pyrazole-5-boronic acid, pinacol ester" Intermediates CS-AC-06766 1282518-60-8 Enquire
"1-Methyl-1H-pyrazole-3,5-dicarboxylic acid" Intermediates CS-M-25456 75092-39-6 Enquire
"1-Methyl-1H-pyrazole-3,5-dicarboxylic aciddimethyl ester" Intermediates CS-M-43597 33146-99-5 Enquire
"1-Methyl-3-(trifluoromethyl)-1H-thieno-[2,3-c]pyrazole-5-ca... Intermediates CS-M-31732 886360-63-0 Enquire
"1-methyl-5-{[(4-oxo-3,4-dihydro-1-phthalazinyl)methyl]amino... Intermediates CS-EL-30242 318284-41-2 Enquire
"1-Phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H... Intermediates CS-M-58504 1002334-12-4 Enquire
"1-Phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H... Intermediates CS-AC-06426 1238702-58-3 Enquire
"1-TERT-BUTOXYCARBONYL-3-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOR... Intermediates CS-DV-01018 914672-66-5 Enquire
"2-(4-chlorophenyl)-2,4-dihydrochromeno[4,3-c]pyrazole" Intermediates CS-EL-12708 204377-14-0 Enquire
"2,4-difluorophenyl 1-methyl-3-(trifluoromethyl)-1H-pyrazole... Intermediates CS-EL-02736 320423-25-4 Enquire
"2,4-dihydrochromeno[4,3-c]pyrazole" Intermediates CS-EL-04374 74618-03-4 Enquire
"2,5-Dimethyl-2H-pyrazole-3-carbonyl chloride" Intermediates CS-M-43473 55458-67-8 Enquire
"3-(1,3-benzodioxol-5-yl)-1-(3,4-dichlorobenzyl)-1H-pyrazole... Intermediates CS-EL-31922 955976-60-0 Enquire
"3-(1,3-benzodioxol-5-yl)-1-(3-fluorobenzyl)-1H-pyrazole" Intermediates CS-EL-31567 955975-75-4 Enquire
"3-(1,3-benzodioxol-5-yl)-1-[(E)-3-phenyl-2-propenyl]-1H-pyr... Intermediates CS-EL-32238 956168-85-7 Enquire
"3-(1,3-Benzodioxol-5-yl)-5-methyl-1H-pyrazole" Intermediates CS-M-32454 937022-12-3 Enquire
"3-(2,4-dimethoxyphenyl)-1H-pyrazole-5-carboxylic acid" Intermediates CS-EL-16466 879765-63-6 Enquire
"3-(2,4-Dimethylphenyl)-1H-pyrazole" Intermediates CS-EL-30384 154258-67-0 Enquire
"3-(3,4-dichlorophenyl)-2,4,5,6-tetrahydrocyclopenta[c]pyraz... Intermediates CS-EL-17444 400077-18-1 Enquire
"3-(3,4-Dimethoxyphenyl)-1H-pyrazole-4-carbaldehyde" Intermediates CS-M-17790 350997-69-2 Enquire
"3-(3,4-dimethoxyphenyl)-1H-pyrazole-4-carboxylic acid" Intermediates CS-EL-09507 879996-77-7 Enquire
"3-(Aminomethyl)-1,5-dimethyl-1H-pyrazole" Intermediates CS-EL-00825 423768-52-9 Enquire
"3,4-bis(4-methoxyphenyl)-1H-pyrazole" Intermediates CS-EL-18691 1007072-64-1 Enquire
"3,4-dichloro-1-methyl-5-phenoxy-1H-pyrazole" Intermediates CS-EL-04585 318238-15-2 Enquire
"3,4-dimethyl-1H-pyrazole-5-carboxylic acid" Intermediates CS-Q-02155 89831-40-3 Enquire
"3,4-Dimethylpyrazole" Intermediates CS-T-20566 2820-37-3 Enquire
"3,5-dibromo-1-methyl-4-nitro-1H-pyrazole" Intermediates CS-EL-05687 155600-99-0 Enquire
"3,5-Diethyl 1-(2-oxopropyl)pyrazole-3,5-dicarboxylate" Intermediates CS-AC-08559 1015894-22-0 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(1-(tert-butoxycarbonyl)azetidin-3-yl)-1h-pyrazole-4-carbo... Fine Chemicals CS-O-36717 1785380-40-6 Enquire
1-Benzyl-1H-pyrazole-4-carboxylic acid Fine Chemicals CS-M-09303 401647-24-3 Enquire
1H-Pyrazole Fine Chemicals CS-T-40986 288-13-1 In Stock
1H-Pyrazole-4-carboxamide Fine Chemicals CS-M-47271 437701-80-9 In Stock
1-isopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-... Fine Chemicals CS-O-54761 1071496-88-2 Enquire
1-Nitro-1H-pyrazole Fine Chemicals CS-M-28987 7119-95-1 Enquire
3-(4-Fluorophenyl)pyrazole Fine Chemicals CS-M-02822 154258-82-9 Enquire
3-(Chloromethyl)-1-methyl-1H-pyrazole hydrochloride Fine Chemicals CS-MM-03559 88529-80-0 Enquire
3-(tert-Butyl)-5-methyl-1H-pyrazole Fine Chemicals CS-M-53487 96440-80-1 Enquire
3-Bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxylic ac... Fine Chemicals CS-MM-10358 500011-86-9 Enquire
3-Bromopyrazole Fine Chemicals CS-M-50650 14521-80-3 Enquire
3-Ethyl-1H-pyrazole Fine Chemicals CS-M-47294 13808-71-4 Enquire
3-Iodo-1H-pyrazole Fine Chemicals CS-M-33768 4522-35-4 Enquire
3-Isobutyl-1-methyl-4-nitro-1H-pyrazole-5-carboxylic acid Fine Chemicals CS-ZH-28632 1004455-71-3 Enquire
3-Methylpyrazole Fine Chemicals CS-M-57713 1453-58-3 In Stock
3-tert-Butyl-1H-pyrazole Fine Chemicals CS-M-25530 15802-80-9 Enquire
3-tert-Butyl-1H-pyrazole-5-carbaldehyde Fine Chemicals CS-M-29158 865138-11-0 Enquire
4-(Bromomethyl)-1-methyl-1H-pyrazole Fine Chemicals CS-O-54659 762237-02-5 Enquire
4-bromo-1-(1-ethoxyethyl)-1H-pyrazole Fine Chemicals CS-ED-01952 1024120-52-2 Enquire
4-Bromo-1H-pyrazole Fine Chemicals CS-M-16896 2075-45-8 Enquire
4-Bromo-3-cyclopropyl-5-methyl-1H-pyrazole Fine Chemicals CS-BL-00061 1287752-84-4 Enquire
4-Bromo-3-methoxy-1-methyl-1H-pyrazole Fine Chemicals CS-BL-00114 1350323-85-1 Enquire
4-Cyanopyrazole Fine Chemicals CS-M-54781 31108-57-3 Enquire
4-methyl-1H-pyrazole-5-carbaldehyde Fine Chemicals CS-O-38423 1284220-50-3 Enquire
4-Nitro-1H-pyrazole Fine Chemicals CS-T-37142 2075-46-9 Enquire
5-ACETYL-2H-PYRAZOLE-3-CARBOXYLIC ACID ETHYL ESTER Fine Chemicals CS-ZE-17322 37622-89-2 Enquire
5-amino-1-[2,6-dichloro-4-(trifluoromethyl) phenyl]-4-(ethyl... Fine Chemicals CS-O-36831 120068-56-6 Enquire
5-Amino-1H-pyrazole-4-carbonitrile Fine Chemicals CS-ZE-10731 1204396-41-7 Enquire
5-Amino-1H-pyrazole-4-carboxamide Fine Chemicals CS-EM-01005 5334-31-6 In Stock
5-Bromo-1-methyl-1H-pyrazole-4-carbonitrile Fine Chemicals CS-ZH-01800 1269293-80-2 Enquire
5-Chloropyrazole-3-carboxylic Acid Fine Chemicals CS-DJ-00926 881668-70-8 Enquire
5-Ethyl-1-methyl-1H-pyrazole-3-carboxylic acid Fine Chemicals CS-MM-00738 165744-15-0 Enquire
5-Nitro-1H-pyrazole-3-carboxylic acid Fine Chemicals CS-M-16895 198348-89-9 Enquire
Ethyl 5-Formylpyrazole-3-carboxylate Fine Chemicals CS-DJ-00317 93290-12-1 Enquire
N-((1,2,3,5,6,7-hexahydro-s-indacen-4-yl)carbamoyl)-1-isopro... Fine Chemicals CS-O-36000 1995067-59-8 Enquire
N,N-Bis-boc-1-guanylpyrazole Fine Chemicals CS-T-06738 152120-54-2 In Stock
tert-Butyl 4-amino-1H-pyrazole-1-carboxylate Fine Chemicals CS-MM-52857 1018446-95-1 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"3,5-Bis(trifluoromethyl)pyrazole" Building Blocks CS-M-02673 14704-41-7 Enquire
1-(Trifluoromethyl)-1H-pyrazole-4-methanamine Building Blocks CS-O-41135 1706440-17-6 Enquire
1,1′-(4-Phenyl-2,6-pyridinediyl)bis[1H-pyrazole-3-methanol] Building Blocks CS-O-48600 337917-96-1 Enquire
1-Butyl-3-(trifluoromethyl)pyrazole Building Blocks CS-T-69002 1426958-36-2 Enquire
1-Ethyl-3-(trifluoromethyl)pyrazole Building Blocks CS-T-75555 362640-54-8 Enquire
1H-Pyrazole-3-boronic acid Building Blocks CS-M-11330 376584-63-3 Enquire
1H-PYRAZOLE-4-BORONIC ACID Building Blocks CS-DL-00264 763120-58-7 Enquire
3-(difluoromethyl)-1-methyl-1H-pyrazole-5-sulfonyl chloride Building Blocks CS-ED-01812 1245822-61-0 Enquire
3-(trifluoromethyl)-1H-Pyrazole Building Blocks CS-DV-01960 1087160-38-0 Enquire
3-Bromo-5-(trifluoromethyl)pyrazole Building Blocks CS-DJ-00345 93608-11-8 Enquire
3-tert-Butyl-1H-pyrazole-5-carbohydrazide Building Blocks CS-M-20281 262292-02-4 Enquire
4-(azetidin-3-ylmethyl)-1-methyl-1H-pyrazole dihydrochloride Building Blocks CS-O-41136 2031261-15-9 Enquire
4-{7H-pyrrolo[2,3-d]pyrimidin-4-yl}-1H-pyrazole Building Blocks CS-TA-55998 952518-97-7 Enquire
4-Aminopyrazole hydrochloride Building Blocks CS-M-54986 4331-28-6 Enquire
4-Bromo-3-(trifluoromethyl)-1H-pyrazole Building Blocks CS-M-20227 19968-17-3 Enquire
4-Pyrazoleboronic Acid Pinacol Ester Building Blocks CS-T-40988 269410-08-4 Enquire
5-Chloro-3-(trifluoromethyl)-1H-pyrazole Building Blocks CS-DV-03098 131797-35-8 Enquire
5-methyl-1H-pyrazole-4-sulfonamide Building Blocks CS-O-35938 1935987-67-9 Enquire
5-phenyl-4,5-dihydro-1H-pyrazole Building Blocks CS-O-48549 936-47-0 Enquire
5-tert-Butyl-2H-pyrazole-3-carboxylic acid Building Blocks CS-M-07466 83405-71-4 Enquire
Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate Building Blocks CS-M-33661 1017782-45-4 Enquire


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Fluocyanobenpyrazole Pesticide Standards CS-T-23647 120068-37-3 In Stock