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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for 1,2,4-triazole, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our 1,2,4-triazole 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 1,2,4-triazole-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.

1,2,4-triazole Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(αR)-α-[(1R)-1-Aminoethyl]-α-(2,4-difluorophenyl)-1H-1,2,4-t... Stable Isotopes CS-T-100879 Not Available Enquire
1-(2,3,5-Tri-O-benzoyl-ß-D-13C5-ribofuranosyl)-1,2,4-triazol... Stable Isotopes CS-T-96456 Not Available Enquire
1-[2-(2,4-Difluorophenyl)-2,3-epoxypropyl]-1H-1,2,4-triazole... Stable Isotopes CS-T-101539 Not Available Enquire
Methyl 1,2,4-Triazole-3-carboxylate-13C2 Stable Isotopes CS-T-99980 4928-88-5(Unlabelled) Enquire
N-tert-Butyl-3-(2-hydroxypropan-2-yl)-5-oxo-4,5-dihydro-1H-1... Stable Isotopes CS-T-100710 Not Available Enquire
N-tert-Butyl-3-isopropyl-5-oxo-4,5-dihydro-1H-1,2,4-triazole... Stable Isotopes CS-T-100709 1327292-73-8 Enquire
β-(4-Chlorophenoxy)-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-... Stable Isotopes CS-T-101688 Not Available Enquire
(aR,ßR)-ß-(2,4-Difluorophenyl)-ß-hydroxy-a-methyl-1H-1,2,4-t... Stable Isotopes CS-T-89880 1329610-75-4 Enquire
1,1’-(1,3-Phenylene)bis-1H-1,2,4-triazole-15N4 Stable Isotopes CS-T-84822 1329836-75-0 Enquire
1H-1,2,4-Triazole-3,5-13C2 Stable Isotopes CS-T-86514 1773496-71-1 Enquire
1H-1,2,4-Triazole-3,5-13C2-1,2,4-15N3 Stable Isotopes CS-T-86513 1261170-82-4 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Alpha-3-Diamino-1H-1,2,4-triazole-1-propanoic acid Metabolite CS-CX-00089 2990-18-3 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Methyl-1,2,4-triazole Impurity CS-T-35233 6086-21-1 In Stock
Methyl 1,2,4-Triazole-3-carboxylate Impurity CS-T-35327 4928-88-5 In Stock
α-(2-Chloro-4-fluorophenyl)-α-(1H-1,2,4-triazol-1-ylmethyl)-... Impurity CS-O-40121 153044-06-5 Enquire
(E)-1,1’-[2-(2,4-Difluorophenyl)-1-propene-1,3-diyl]bis-1H-1... Impurity CS-T-91906 163921-61-7 Enquire
(Z)-1,1’-(2-(2,4-Difluorophenyl)prop-1-ene-1,3-diyl)bis(1H-1... Impurity CS-T-90628 163921-62-8 Enquire
1-(((2R,3S)-2-(2,5-Difluorophenyl)-3-methyloxiran-2-yl)methy... Impurity CS-ED-02172 241479-73-2 Enquire
1-(2,3,5-Tri-O-acetyl-β-D-ribofuranosyl)-1,2,4-triazole... Impurity CS-T-62227 39925-10-5 Enquire
1-(2-C-Methyl-β-D-ribofuranosyl)-1H-1,2,4-triazole-3-ca... Impurity CS-N-00227 847651-91-6 Enquire
1-(3,4-Dichlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3... Impurity CS-H-00308 1000577-05-8 Enquire
1-(3,5-Dichlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxyl... Impurity CS-M-31526 338408-13-2 Enquire
1-(4-Chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-car... Impurity CS-H-00309 1000577-01-4 Enquire
1-[2,3-O-Isopropylidene-β-D-ribofuranosyl]-1,2,4-triazo... Impurity CS-T-56870 594860-43-2 Enquire
1-β-D-Ribofuranosyl-1,2,4-triazole-3-carboxylic Acid Methyl ... Impurity CS-T-61137 38934-69-9 Enquire
2-(2-phenylethyl)-2-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-... Impurity CS-O-03433 Not Available Enquire
3,5-Dibromo-1-methyl-1H-1,2,4-triazole Impurity CS-M-47713 23579-79-5 Enquire
3-Amino-1H-1,2,4-triazole-5-carboxylic acid Impurity CS-M-25866 3641-13-2 Enquire
3-Bromo-1H-1,2,4-triazole Impurity CS-M-16792 7343-33-1 Enquire
3-Bromo-5-cyclopropyl-1H-1,2,4-triazole Impurity CS-M-47279 82767-64-4 Enquire
4-(2,3-Dihydro-1,4-benzodioxin-6-yl)-4H-1,2,4-triazole-3-thi... Impurity CS-CE-00298 959575-58-7 Enquire
4-(3-Aminopropyl)-4H-1,2,4-triazole Impurity CS-DJ-01150 897054-15-8 Enquire
4,5-Diphenyl-4H-1,2,4-triazole-3-thiol Impurity CS-M-09921 6596-82-3 Enquire
4-[3-(1-Pyrenyl)propyl]-3H-1,2,4-triazole-3,5(4H)-dione Impurity CS-T-60921 138615-26-6 Enquire
4-Allyl-5-[1-(4-fluorophenoxy)ethyl]-4H-1,2,4-triazole-3-thi... Impurity CS-M-19951 725217-88-9 Enquire
4-Allyl-5-[1-(4-methylphenoxy)ethyl]-4H-1,2,4-triazole-3-thi... Impurity CS-M-19915 667412-79-5 Enquire
4-Allyl-5-[4-(diethylamino)phenyl]-4H-1,2,4-triazole-3-thiol Impurity CS-M-19963 669748-48-5 Enquire
4-Amino-5-(2,4-dichlorophenyl)-4H-1,2,4-triazole-3-thiol Impurity CS-M-48271 93677-89-5 Enquire
4-Amino-5-(2-furyl)-4H-1,2,4-triazole-3-thiol Impurity CS-M-46441 80809-38-7 Enquire
4-Amino-5-(2-thienyl)-4H-1,2,4-triazole-3-thiol Impurity CS-M-46442 61019-27-0 Enquire
4-Amino-5-(3,5-dimethoxyphenyl)-4H-1,2,4-triazole-3-thiol Impurity CS-M-50015 750624-63-6 Enquire
4-Amino-5-(4-fluorophenyl)-4H-1,2,4-triazole-3-thiol Impurity CS-M-48278 61019-25-8 Enquire
4-Amino-5-(4-methoxyphenyl)-4H-1,2,4-triazole-3-thiol Impurity CS-M-48274 36209-49-1 Enquire
4-Amino-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol Impurity CS-M-46443 36209-51-5 Enquire
4-Ethyl-5-[1-(4-methylphenoxy)ethyl]-4H-1,2,4-triazole-3-thi... Impurity CS-M-19914 669705-05-9 Enquire
5-(2-Furyl)-4-methyl-4H-1,2,4-triazole-3-thiol Impurity CS-M-19671 27106-14-5 Enquire
5-(3,4-Dimethoxyphenyl)-4-methyl-4H-1,2,4-triazole-3-thiol Impurity CS-M-06477 174573-92-3 Enquire
5-(3-Methoxyphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione Impurity CS-M-48121 419540-45-7 Enquire
5-(3-Methoxyphenyl)-4-phenyl-4H-1,2,4-triazole-3-thiol Impurity CS-M-28169 174573-90-1 Enquire
5-(4-Bromophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione Impurity CS-M-48120 39631-33-9 Enquire
5-(4-Chlorophenyl)-4-phenyl-4H-1,2,4-triazole-3-thiol Impurity CS-M-28172 93300-54-0 Enquire
5-(Aminomethyl)-4-benzyl-1,2,4-triazole-3-thiol, N-BOC prote... Impurity CS-CE-00469 306935-43-3 Enquire
5-[1-(2,4-Dimethylphenoxy)ethyl]-4-methyl-4H-1,2,4-triazole-... Impurity CS-M-19978 725221-37-4 Enquire
5-[1-(3,4-Dimethylphenoxy)ethyl]-4-methyl-4H-1,2,4-triazole-... Impurity CS-M-19916 588673-73-8 Enquire
5-[1-(4-Chloro-3,5-dimethylphenoxy)ethyl]-4-methyl-4H-1,2,4-... Impurity CS-M-19958 588674-42-4 Enquire
5-[1-(4-Chloro-3-methylphenoxy)ethyl]-4-ethyl-4H-1,2,4-triaz... Impurity CS-M-19956 725217-57-2 Enquire
5-[1-(4-Chloro-3-methylphenoxy)ethyl]-4-methyl-4H-1,2,4-tria... Impurity CS-M-19955 724749-60-4 Enquire
5-[4-(Diethylamino)phenyl]-4-ethyl-4H-1,2,4-triazole-3-thiol Impurity CS-M-19962 669748-44-1 Enquire
5-[4-(Diethylamino)phenyl]-4-methyl-4H-1,2,4-triazole-3-thio... Impurity CS-M-19961 669748-04-3 Enquire
5-{[(4-Chlorophenyl)amino]methyl}-4-phenyl-4H-1,2,4-triazole... Impurity CS-M-24445 92516-08-0 Enquire
5-Pyridin-4-yl-2,4-dihydro-3H-1,2,4-triazole-3-thione Impurity CS-M-48279 1477-24-3 Enquire
Benzyl 1-(4-chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazol... Impurity CS-H-00315 1000577-09-2 Enquire
Ethyl 1-(3,5-dichlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-tria... Impurity CS-H-00322 1000576-61-3 Enquire
Ethyl 1-(4-bromophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-... Impurity CS-H-00320 1000576-69-1 Enquire
Methyl 1-(2-chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazol... Impurity CS-H-00317 1000576-85-1 Enquire
Methyl 5-amino-1H-1,2,4-triazole-3-carboxylate hydrochloride Impurity CS-M-44348 3641-14-3 Enquire
N,N-Dimethyl-1H-1,2,4-triazole-1-acetamide Impurity CS-T-53704 81041-92-1 Enquire
Propiconazole-4H-1,2,4-triazole Impurity CS-T-40654 221132-58-7 Enquire
tert.-Butyl 1-(3,5-dichlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,... Impurity CS-H-00314 1858255-17-0 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(4-Aminobenzyl)-1,2,4-triazole Intermediate CS-T-44877 119192-10-8 In Stock
1,2,4-Triazole sodium derivative Intermediate CS-O-30803 41253-21-8 In Stock
1-[(4-Hydrazinophenyl)methyl]-1H-1,2,4-triazole hydrochlorid... Intermediate CS-O-31500 154748-67-1 In Stock
3-Nitro-1,2,4-triazole Intermediate CS-T-37338 24807-55-4 In Stock
4-Amino-4H-1,2,4-triazole Intermediate CS-M-57703 584-13-4 In Stock
4-cyclopropyl-4H-1,2,4-triazole-3-carboxylic acid Intermediate CS-O-49532 1547004-36-3 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,2,4-Triazole Fine Chemicals CS-T-44867 288-88-0 In Stock
1-nitro-1H-1,2,4-triazole Fine Chemicals CS-O-45404 70890-80-1 Enquire
1-[(Z)-2-Cycloheptyloxy-2-(2,6-dichlorophenyl)ethenyl]-1,2,4... Fine Chemicals CS-ZG-26425 246852-46-0 Enquire
1-[[(2S,3S)-3-(2-chlorophenyl)-2-(4-fluorophenyl)oxiran-2-yl... Fine Chemicals CS-ZJ-01109 106325-08-0 Enquire
1-Methyl-1H-1,2,4-triazole-5-carbaldehyde Fine Chemicals CS-T-93934 99651-37-3 Enquire
3(5)-Chloromethyl-1H-1,2,4-triazole hydrochloride Fine Chemicals CS-MM-74048 55928-92-2 Enquire
3-[trans-1-(4-Chlorophenyl)-3-fluorocyclobutyl]-4,5-dicyclop... Fine Chemicals CS-O-37236 633317-53-0 Enquire
3-methoxy-4H-1,2,4-triazole Fine Chemicals CS-O-37090 7411-17-8 Enquire
3-Methyl-1H-1,2,4-triazole Fine Chemicals CS-DE-01639 7170-01-6 Enquire
3-tert-Butyl-1H-1,2,4-triazole Fine Chemicals CS-M-46001 96440-78-7 Enquire
5-Methyl-1-[3-(trifluoromethyl)phenyl]-1H-1,2,4-triazole-3-c... Fine Chemicals CS-MM-78524 103058-77-1 Enquire
METHYL 4-METHYL-4H-1,2,4-TRIAZOLE-3-CARBOXYLATE Fine Chemicals CS-ZE-34918 68984-31-6 Enquire
N-[2,4-dichloro-5-[(4-chlorofluoromethyl)-4,5-dihydro-3-meth... Fine Chemicals CS-O-36722 Not Available Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-nitroso-1H-1,2,4-triazole Nitrosamine CS-O-41559 Not Available Enquire
4-Nitroso-4H-1,2,4-Triazole Nitrosamine CS-O-40909 Not Available Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,2,4-Triazole Secondary Standards CS-SS-26486-100MG 288-88-0 Enquire
4-Amino-4H-1,2,4-triazole Secondary Standards CS-SS-26488-100MG 584-13-4 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Amino-1,2,4-triazole-d4 Stable Isotope Reagent CS-C-01667 787577-24-6 Enquire
3-bromo-1-(methyl-d3)-1H-1,2,4-triazole Stable Isotope Reagent CS-O-49067 57022-93-2 Enquire
1,2,4-Triazole-1,2,4-15N3 Stable Isotope Reagent CS-T-86596 1173023-70-5 Enquire
1,2,4-Triazole-d3 Stable Isotope Reagent CS-C-00691 43088-92-2 Enquire


Heterocyclic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-hydrazinyl-4H-1,2,4-triazole Heterocyclic CS-ED-42024 38767-33-8 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2H-1,2,4-triazole-3-carbonitrile Building Blocks CS-O-47505 3641-10-9 Enquire
4H-1,2,4-triazole Building Blocks CS-ED-01464 288-88-0 In Stock
5-oxo-1,4-dihydro-1,2,4-triazole-3-carbaldehyde Building Blocks CS-ED-41706 Not Available Enquire
3-(Trifluoromethyl)-1H-1,2,4-triazole Building Blocks CS-M-43211 60406-75-9 Enquire


Deuterated Reagents

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,2,4-Triazole-d2 Deuterated Reagents CS-O-46552 56866-65-0 Enquire