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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-(2-Aminoethyl)-3-nitro-1H-pyrazole-d4 Hydrochloride Stable Isotopes CS-T-100874 Not Available Enquire
1,5-Dimethyl-1H-pyrazole-4-sulfonamide-D3 Stable Isotopes CS-T-102408 88398-55-4(Unlabelled) Enquire
1-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-... Stable Isotopes CS-T-96429 Not Available 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
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
5-Methoxy-d3-1-methyl-1H-pyrazole-4-sulfonyl Chloride Stable Isotopes CS-T-99712 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
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-(2,2,3,3,3-D5-propyl)-1H-pyrazole-5-... Stable Isotopes CS-T-82548 1175993-00-6 Enquire
1-(Methyl-D3)-4-nitro-3-propyl-1H-pyrazole-5-carboxylic Acid Stable Isotopes CS-T-80679 526203-29-2 Enquire
1,3-Dimethyl-1H-pyrazole-4-sulfonamide-d3 (~90%) Stable Isotopes CS-T-94893 Not Available 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
5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3... Stable Isotopes CS-T-101681 Not Available 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

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Aminopyrazole Hydrochloride API CS-T-48062 34045-29-9 Enquire


Metabolite

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


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(3,4-dichloro-1-methylpyrazole-5-sulfonyl)-3-(4,6-dimethyl... Impurity CS-O-60817 ---- Enquire
1-[6-Amino-9-(3,4-dihydroxy-5-hydroxymethyl-tetrahydrofuran-... Impurity CS-O-47370 Not Available Enquire
3-(3,3,3-trifluoro-2,2-dimethylpropoxy)-1H-pyrazole Impurity CS-O-45076 2229861-15-6 In Stock
3-Aminopyrazole-4-carboxamide Hemisulfate Impurity CS-O-07140 27511-79-1 In Stock
3-chloro-5-(N-((4,6-dimethoxypyrimidin-2-yl)carbamoyl)sulfam... Impurity CS-O-60814 ---- Enquire
4-(2-Ethoxybenzamido)-1-methyl-3-n-propylpyrazole-5-carboxam... Impurity CS-T-54307 139756-03-9 In Stock
4-[(2-Ethoxybenzoyl)amino]-1-methyl-5-propyl-1H-pyrazole-3-c... Impurity CS-T-77391 501120-38-3 In Stock
5-Acetyl-N-[(1S)-2-[3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-... Impurity CS-O-34554 1297537-33-7 In Stock
5-Amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-[(trich... Impurity CS-O-59883 1393738-20-9 Enquire
5-Amino-4-[(chlorodifluoromethyl)sulfinyl]-1-[2,6-dichloro-4... Impurity CS-O-59880 134403-22-8 Enquire
5-Amino-4-[(dichlorofluoromethyl)sulfinyl]-1-[2,6-dichloro-4... Impurity CS-O-59881 134403-23-9 Enquire
Methyl 3-chloro-1-methyl-5-sulfamoyl-1H-pyrazole-4-carboxyla... Impurity CS-ED-31416 100784-27-8 Enquire
(4Z)-3-Methyl-1-phenyl-1H-pyrazole-4,5-dione 4-oxime Impurity CS-M-48165 1080-89-3 Enquire
(E)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-pyrazole... Impurity CS-T-13616 52632-17-4 Enquire
1 - Methyl - 3 - trifluoromethylpyrazole - 5 - boronic acid Impurity CS-DV-00480 344591-91-9 Enquire
1-(1-Ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-... Impurity CS-M-24044 1029716-44-6 Enquire
1-(2,4-Dichlorophenyl)-4-methyl-5-(4-nitrophenyl)-1H-pyrazol... Impurity CS-T-52686 221385-24-6 Enquire
1-(2,4-Dichlorophenyl)-4-methyl-5-phenyl-1H-pyrazole-3-carbo... Impurity CS-T-52688 221385-23-5 Enquire
1-(2,4-Dichlorophenyl)-5-(4-bromophenyl)-4-methyl-N-(piperid... Impurity CS-T-17764 18232-63-5 Enquire
1-(2-Bromo-ethyl)-1H-pyrazole Impurity CS-M-07294 119291-22-4 Enquire
1-(2-chloro-6-fluorobenzyl)-3-(3,4-dimethoxyphenyl)-1H-pyraz... Impurity CS-Q-00042 1007192-89-3 Enquire
1-(2-Chloro-ethyl)-3,5-dimethyl-1H-pyrazole Impurity CS-M-07012 38460-08-1 Enquire
1-(2-Hydroxy-2-methylpropyl)-5-methyl-3-oxo-2-phenyl-2,3-dih... Impurity CS-DJ-00177 913376-56-4 Enquire
1-(2-methanesulfonylethyl)-4-(tetramethyl-1,3,2-dioxaborolan... Impurity CS-EM-02788 1339892-52-2 Enquire
1-(2-Morpholinoethyl)-1H-pyrazole-4-boronic acid,pinacol est... Impurity CS-DL-00384 864754-18-7 Enquire
1-(3,4-Dichlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic... Impurity CS-M-31059 477710-54-6 Enquire
1-(4-Fluoro-phenyl)-1H-pyrazole-4-carbaldehyde Impurity CS-M-09477 890652-03-6 Enquire
1-(4-Fluoro-phenyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-22312 890626-54-7 Enquire
1-(4-Fluorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic aci... Impurity CS-M-31057 288251-63-8 Enquire
1-(4-Methoxyphenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylic ac... Impurity CS-M-33646 1001779-87-8 Enquire
1-(4-Phenyl-1,3-thiazol-2-yl)-5-(trifluoromethyl)-1H-pyrazol... Impurity CS-M-32825 159885-80-0 Enquire
1-(Ethoxycarbonylmethyl)pyrazole-4-boronic Acid Pinacol Este... Impurity CS-DJ-00774 864754-16-5 Enquire
1-(oxan-2-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyr... Impurity CS-EM-02808 1003846-21-6 Enquire
1-(oxetan-3-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-p... Impurity CS-EM-02207 1339890-99-1 Enquire
1-(oxolan-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-... Impurity CS-DL-00780 1029715-63-6 Enquire
1-(Tetrahydro-1,1-dioxido-3-thienyl)-4-(4,4,5,5-tetramethyl-... Impurity CS-T-61816 1233526-31-2 Enquire
1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-16640 2644-93-1 Enquire
1,3,5-Trimethyl-1H-pyrazole-4-carbonyl chloride Impurity CS-M-28484 98298-63-6 Enquire
1,3-Dimethyl-1H-pyrazole-4-carbohydrazide Impurity CS-M-25024 512810-25-2 Enquire
1,3-Diphenyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-16643 21487-45-6 Enquire
1,5-Dimethyl-1H-pyrazole-4-boronic acid,pinacol ester Impurity CS-DL-00851 1036991-40-8 Enquire
1,5-Dimethyl-1H-pyrazole-4-carbonyl chloride Impurity CS-M-28477 851973-08-5 Enquire
1-[(Methylsulfonyl)methyl]-4-(4,4,5,5-tetramethyl-1,3,2-diox... Impurity CS-T-58624 1282530-99-7 Enquire
1-[1,3]Dioxolan-2-ylmethyl-1H-pyrazole-4-boronic acid,pinaco... Impurity CS-DL-00383 864754-17-6 Enquire
1-[2-(oxan-2-yloxy)ethyl]-4-(tetramethyl-1,3,2-dioxaborolan-... Impurity CS-EM-02801 956907-34-9 Enquire
1-[3-(Chloromethyl)phenyl]-3,5-dimethyl-1H-pyrazole hydrochl... Impurity CS-M-29192 1185298-82-1 Enquire
1-[4-(4-Chlorophenyl)-1,3-thiazol-2-yl]-5-(trifluoromethyl)-... Impurity CS-M-32826 159885-82-2 Enquire
1-[4-(4-Fluorophenyl)-2-thiazolyl]-3,5-dimethyl-1H-pyrazole-... Impurity CS-T-54906 1172940-17-8 Enquire
1-Acetyl-3-[1-(heptafluoropropoxy)-1,2,2,2-tetrafluoroethyl]... Impurity CS-CE-00236 231301-28-3 Enquire
1-Acetyl-4-bromo-3(5)-[1-heptafluoropropoxy)tetrafluoroethyl... Impurity CS-CE-00252 231301-30-7 Enquire
1-Acetyl-4-chloro-3-(heptafluoropropyl)-5-methyl-1H-pyrazole Impurity CS-CE-00220 231301-25-0 Enquire
1-Allyl-3-methyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-08883 899709-47-8 Enquire
1-Allyl-4-bromo-3,5-dimethyl-1H-pyrazole Impurity CS-M-26032 13369-76-1 Enquire
1-BENZYL-1H-PYRAZOLE-4-BORONIC ACID PINACOL ESTER Impurity CS-DL-00932 761446-45-1 Enquire
1-Benzyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-07058 2644-94-2 Enquire
1-Benzyl-4-bromo-1H-pyrazole Impurity CS-M-26031 50877-41-3 Enquire
1-Benzyl-4-bromo-3,5-dimethyl-1H-pyrazole hydrochloride Impurity CS-M-47854 51108-53-3 Enquire
1-Cyclobutyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)... Impurity CS-T-73212 1002309-48-9 Enquire
1-Cyclopropylmethyl-1H-pyrazole-4-boronic acid, pinacol este... Impurity CS-T-73749 1000801-75-1 Enquire
1-Difluoromethyl-1H-pyrazole-3-carboxylic acid Impurity CS-M-09161 925179-02-8 Enquire
1-Ethyl-1H-pyrazole-3-carbonyl chloride Impurity CS-M-28491 1006471-16-4 Enquire
1-Ethyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-09089 304903-10-4 Enquire
1-Ethyl-1H-pyrazole-5-carbonyl chloride Impurity CS-M-28490 1006471-20-0 Enquire
1-Ethyl-3-methyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-16020 676348-38-2 Enquire
1-Ethyl-4-nitro-1H-pyrazole-3-carboxylic acid Impurity CS-M-26604 401906-11-4 Enquire
1H-pyrazole-3-carboximidamide hydrochloride Impurity CS-TA-55947 166197-22-4 Enquire
1H-Pyrazole-4-carbohydrazide Impurity CS-M-47266 87551-45-9 Enquire
1-Isopropyl-1H-pyrazole-5-boronic acid Impurity CS-DL-00627 839714-33-9 Enquire
1-Methyl-1H-pyrazole-3-carbonyl chloride Impurity CS-M-28489 84547-60-4 Enquire
1-Methyl-1H-pyrazole-3-carboxylic acid(4-amino-phenyl)-amide Impurity CS-M-22842 957514-02-2 Enquire
1-Methyl-1H-pyrazole-5-carbonyl chloride Impurity CS-M-28488 84547-59-1 Enquire
1-Methyl-1H-pyrazole-5-carboxamide Impurity CS-M-47244 98711-43-4 Enquire
1-Methyl-3-(trifluoromethyl)-1H-pyrazole Impurity CS-DL-00809 154471-65-5 Enquire
1-Methyl-3-(trifluoromethyl)-5-[3-(trifluoro-methyl)phenoxy]... Impurity CS-M-30164 158712-22-2 Enquire
1-Methyl-3-(trifluoromethyl)-5-[3-(trifluoro-methyl)phenoxy]... Impurity CS-M-33021 158712-29-9 Enquire
1-Methyl-3-(trifluoromethyl)-5-{[3-(trifluoromethyl)phenyl]s... Impurity CS-M-31807 400751-40-8 Enquire
1-Methyl-3-phenyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid Impurity CS-M-32372 25252-47-5 Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid Ethyl Ester Impurity CS-T-34343 133261-07-1 Enquire
1-Methyl-4-nitro-1H-pyrazole Impurity CS-M-28958 82208-47-7 Enquire
1-Methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H... Impurity CS-M-22905 847818-74-0 Enquire
1-Phenyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-09348 54605-72-0 Enquire
1-Phenyl-3-(2-thienyl)-1H-pyrazole-4-carbaldehyde Impurity CS-M-26639 210825-11-9 Enquire
1-phenyl-5-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazole Impurity CS-O-40866 515845-18-8 Enquire
2,4-Dimethyl-2H-pyrazole-3-sulfonyl chloride Impurity CS-M-50841 1174834-52-6 Enquire
2-Chloro-5-(1-ethyl-5-hydroxy-1H-pyrazole-4-carbonyl)-4-oxaz... Impurity CS-DU-00281 1231624-99-9 Enquire
2-Difluoromethyl-2H-pyrazole-3-carboxylic acid Impurity CS-M-09162 925199-97-9 Enquire
2-Ethanesulfonyl-5-(1-ethyl-5-hydroxy-1H-pyrazole-4-carbonyl... Impurity CS-DU-00272 1231644-49-7 Enquire
3-(1,3-Benzodioxol-5-yl)-1H-pyrazole Impurity CS-M-47589 141791-06-2 Enquire
3-(2-Furyl)-1H-pyrazole-5-carbohydrazide Impurity CS-M-26215 92352-24-4 Enquire
3-(2-Hydroxy-4-methoxyphenyl)-4-(4-carboxyphenoxy)-1H-pyrazo... Impurity CS-T-27331 394228-95-6 Enquire
3-(3,4-Dimethoxyphenyl)-1H-pyrazole Impurity CS-M-47044 154257-70-2 Enquire
3-(3-Bromophenyl)-1H-pyrazole-4-carboxylic acid Impurity CS-M-26641 879996-70-0 Enquire
3-(3-Methoxyphenyl)-1H-pyrazole Impurity CS-M-47590 144026-74-4 Enquire
3-(3-Nitrophenyl)-1H-pyrazole-4-carbaldehyde Impurity CS-M-26316 26033-25-0 Enquire
3-(3-Nitrophenyl)-1H-pyrazole-4-carboxylic acid Impurity CS-M-26993 448187-56-2 Enquire
3-(4-Bromophenyl)-1H-pyrazole-4-carboxylic acid Impurity CS-M-26994 618383-49-6 Enquire
3-(4-Bromophenyl)-1H-pyrazole-5-carboxylic acid Impurity CS-M-26314 890591-20-5 Enquire
3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehyde Impurity CS-M-08107 350997-67-0 Enquire
3-(4-Ethylphenyl)-1H-pyrazole-5-carboxylic acid Impurity CS-M-26289 890591-84-1 Enquire
3-(4-Fluorophenyl)-1H-pyrazole-4-carbaldehyde Impurity CS-M-16781 306936-57-2 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3-dimethyl-1H-pyrazole-4-sulfonamide Intermediate CS-O-45632 88398-53-2 In Stock
1-Methyl-3-((methylamino)methyl)-1H-pyrazole Intermediate CS-O-57759 871825-57-9 Enquire
2,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid Intermediate CS-O-49653 933694-89-4 Enquire
3-(Difluoromethyl)-1H-pyrazole-4-carboxylic Acid Intermediate CS-T-91711 151734-02-0 In Stock
3-Aminopyrazole Intermediate CS-T-03410 1820-80-0 In Stock
3-Bromo-1,5-dimethylpyrazole Intermediate CS-O-49760 5744-80-9 Enquire
3-Chloromethyl-1-methylpyrazole Intermediate CS-O-49831 84547-64-8 Enquire
3-Methyl-1-propylpyrazole-4-carbaldehyde Intermediate CS-O-49639 933778-28-0 Enquire
3-Nitropyrazole Intermediate CS-AC-10789 26621-44-3 In Stock
4-Iodo-1H-pyrazole-1-acetonitrile Intermediate CS-O-49531 955965-81-8 Enquire
ethyl 1-methyl-1H-pyrazole-4-carboxylate Intermediate CS-EM-02629 85290-80-8 In Stock
Ethyl 2-((3bS,4aR)-3-(trifluoromethyl)-4,4a-dihydrospiro[cyc... Intermediate CS-O-52391 2375020-09-8 Enquire
Ethyl 1-(4-fluorophenyl)-4-hydroxy-1H-pyrazole-3-carboxylate Intermediate CS-O-47710 636568-08-6 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
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-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-... Fine Chemicals CS-O-52743 2304634-11-3 Enquire
3,5-Pyrazoledicarboxylic acid monohydrate Fine Chemicals CS-O-53167 303180-11-2 Enquire
3-Methylpyrazole Fine Chemicals CS-M-57713 1453-58-3 In Stock
4-(Bromomethyl)-1-methyl-1H-pyrazole Fine Chemicals CS-O-54659 762237-02-5 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
5-(4-phenoxyphenyl)-1H-pyrazole-4-carboxylic acid Fine Chemicals CS-O-60751 1266461-63-5 Enquire
5-Amino-1H-pyrazole-4-carboxamide Fine Chemicals CS-EM-01005 5334-31-6 In Stock
5-Fluoro-1,3-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaboro... Fine Chemicals CS-O-52744 1586046-21-0 Enquire
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
1-Nitro-1H-pyrazole Fine Chemicals CS-M-28987 7119-95-1 Enquire
3-(4-Chlorophenyl)pyrazole Fine Chemicals CS-M-03261 59843-58-2 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-cyclopropyl-1-methyl-1H-pyrazole-5-carboxylic acid Fine Chemicals CS-BX-00967 Not Available 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-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
4,4-thiobis-{5-amino-1-[2,6-dichloro-4-(trifluoromethyl) phe... Fine Chemicals CS-O-36832 1224942-81-71224942-81-7 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-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-(ethox... Fine Chemicals CS-O-36833 213457-39-7 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-4-chloro-1-[2,6-dichloro-4-(trifluoromethyl) phenyl]... Fine Chemicals CS-O-36830 724764-50-5 Enquire
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-amino-3-(ethylthio)-1H-pyrazole-4-carboxylate Fine Chemicals CS-O-37714 1037765-43-7 Enquire
Ethyl 5-Formylpyrazole-3-carboxylate Fine Chemicals CS-DJ-00317 93290-12-1 Enquire
Methyl 5-(4-methoxyphenyl)-4-[(E)-phenyldiazenyl]-1H-pyrazol... Fine Chemicals CS-ZH-09882 134454-31-2 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 Enquire
tert-Butyl 4-amino-1H-pyrazole-1-carboxylate Fine Chemicals CS-MM-52857 1018446-95-1 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-bromo-1-nitroso-1H-pyrazole Nitrosamine CS-O-46671 Not Available Discontinued
4-nitro-1-nitroso-3-propyl-1H-pyrazole-5-carboxamide Nitrosamine CS-O-42917 Not Available Enquire
1-nitroso-5-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazole Nitrosamine CS-O-41111 Not Available Enquire


Pesticide Standards

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


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-methyl-1H-pyrazole-4-carbaldehyde-5-d Stable Isotope Reagent CS-O-48088 2913278-35-8 Enquire
1-methyl-1H-Pyrazole-5-d Stable Isotope Reagent CS-O-48085 50837-66-6 Enquire
1-methyl-d3-1H-pyrazole-3-carbaldehyde Stable Isotope Reagent CS-O-48090 2402829-79-0 Enquire
1-methyl-d3-1H-pyrazole-4-amine dihydrochloride Stable Isotope Reagent CS-O-48092 2567498-20-6 Enquire
1-methyl-d3-1H-pyrazole-4-carbaldehyde Stable Isotope Reagent CS-O-48089 2913418-12-7 Enquire
1-methyl-d3-1H-pyrazole-4-carboxylic acid Stable Isotope Reagent CS-O-48091 2919955-56-7 Enquire
4-(bromomethyl-d2)-1-methyl-1H-pyrazole hydrobromide Stable Isotope Reagent CS-O-47548 528878-44-6 (Unlabelled) Enquire
4-bromo-1-methyl-1H-Pyrazole-5-d Stable Isotope Reagent CS-O-48087 2932439-03-5 Enquire
4-Methyl-1H-pyrazole-3,5-d2 Stable Isotope Reagent CS-C-02129 Not Available Enquire
1-(Methyl-d3)-4-nitro-1H-pyrazole Stable Isotope Reagent CS-AC-07936 1447606-92-9 Enquire
1H-Pyrazole-3,4,5-d3 Stable Isotope Reagent CS-T-40987 51038-79-0 Enquire
5-Chloro-1-(methyl-d3)-4-nitro-1h-pyrazole Stable Isotope Reagent CS-AC-07937 1428577-87-0 Enquire


Heterocyclic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
hydrazinopyrazole Heterocyclic CS-ED-42020 54962-77-5 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,1′-(4-Phenyl-2,6-pyridinediyl)bis[1H-pyrazole-3-methanol] Building Blocks CS-O-48600 337917-96-1 Enquire
1H-Pyrazole-3-boronic acid Building Blocks CS-M-11330 376584-63-3 Enquire
5-phenyl-4,5-dihydro-1H-pyrazole Building Blocks CS-O-48549 936-47-0 Enquire
1-(6-Amino-9H-purin-2-yl)-N-methyl-1H-pyrazole-4-carboxamide Building Blocks CS-TA-14776 1702334-23-3 Enquire
1-(Trifluoromethyl)-1H-pyrazole-4-methanamine Building Blocks CS-O-41135 1706440-17-6 Enquire
1-Benzyl-1H-pyrazole-4-boronic acid Building Blocks CS-M-05093 852362-22-2 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-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-(Trifluoromethyl)pyrazole Building Blocks CS-M-03430 20154-03-4 Enquire
3,5-Bis(trifluoromethyl)pyrazole Building Blocks CS-M-02673 14704-41-7 Enquire
3-Bromo-5-(trifluoromethyl)pyrazole Building Blocks CS-DJ-00345 93608-11-8 Enquire
3-Bromo-5,6-dihydro-2-(6-methyl-2-pyridinyl)-4H-pyrrolo[1,2-... Building Blocks CS-O-47580 476473-90-2 Enquire
3-Chloro-1-ethyl-1H-pyrazole-4-methanamine Building Blocks CS-O-47603 1401093-92-2 Enquire
3-Methyl-5-(trifluoromethyl)-1H-pyrazole Building Blocks CS-M-04596 10010-93-2 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-(Trifluoromethyl)-1H-pyrazole Building Blocks CS-M-33611 52222-73-8 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-Bromo-3-chloro-1H-pyrazole Building Blocks CS-ED-01288 27258-18-0 Enquire
4-Bromo-5-methoxy-1H-pyrazole Building Blocks CS-TA-36231 1147011-26-4 Enquire
4-Pyrazoleboronic Acid Pinacol Ester Building Blocks CS-T-40988 269410-08-4 Enquire
5,6-Dihydro-2-(6-methyl-2-pyridinyl)-4H-pyrrolo[1,2-b] pyraz... Building Blocks CS-O-47579 700871-85-8 Enquire
5-benzyl-1-methyl-1H-pyrazole-3-carboxylic acid Building Blocks CS-O-36556 2089059-09-4 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-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
tert-Butyl 3-amino-1H-pyrazole-1-carboxylate Building Blocks CS-ZI-44759 863504-84-1 Enquire


Catalyst

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-( Diphenylphosphino)-1',3',5'-triphenyl -1'H-1,4'-bipyrazo... Catalyst CS-BX-01247 1021176-73-7 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Methyl-4-nitro-3-propylpyrazole-5-carboxamide Therapeutic CS-T-34289 139756-01-7 In Stock