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

Telmisartan Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Debenzoic Acid Bromotelmisartan-d4 Stable Isotopes CS-T-101589 Not Available Enquire
N-Methyl-d3-o-phenylenediamine Stable Isotopes CS-T-58468 1246820-22-3 Enquire
Telmisartan-13C,d3 Stable Isotopes CS-O-02765 1261396-33-1 In Stock
Telmisartan-d3 Stable Isotopes CS-O-03007 1189889-44-8 In Stock
Telmisartan-d3 Acyl-beta-D-glucuronide Stable Isotopes CS-T-95965 250780-40-6 (Unlabelled) Enquire
2-Descarboxy-2-cyano Telmisartan-d3 Stable Isotopes CS-T-73601 1794883-47-8 Enquire
Telmisartan-d3 tert-Butyl Ester Stable Isotopes CS-T-86296 1794940-54-7 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Telmisartan sodium API CS-ED-01589 515815-47-1 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3-Dibromo-5,5-dimethylhydantoin Impurity CS-M-58068 77-48-5 In Stock
4-Methylbiphenyl-2-carboxylic Acid Impurity CS-T-33299 7148-03-0 In Stock
Irbesartan Bromo Nitrile Impurity Impurity CS-O-08255 114772-54-2 In Stock
Methyl 4-(butyrylamino)-3-methyl-5-nitrobenzoate Impurity CS-O-31538 152628-01-8 In Stock
Telmisartan Benzimidazole Acid Impurity CS-O-08250 152628-03-0 In Stock
Telmisartan Chloro Impurity Impurity CS-O-16835 885045-90-9 Enquire
Telmisartan Cyano Positional Isomer Impurity Impurity CS-O-49152 1338830-39-9 Enquire
Telmisartan Dibenzimidazole N-Desmethyl Impurity Impurity CS-O-08257 884330-09-0 In Stock
Telmisartan EP Impurity A Impurity CS-O-08258 152628-02-9 In Stock
Telmisartan EP Impurity B Impurity CS-O-08259 1026353-20-7 In Stock
Telmisartan EP Impurity B Methyl Ester Impurity CS-T-52275 1338830-37-7 Enquire
Telmisartan EP Impurity C Impurity CS-O-08260 144702-26-1 In Stock
Telmisartan EP Impurity E Impurity CS-O-08261 884330-12-5 In Stock
Telmisartan EP Impurity F Impurity CS-O-08262 915124-86-6 In Stock
Telmisartan EP Impurity G Impurity CS-O-08263 144702-27-2 In Stock
Telmisartan EP Impurity H Impurity CS-O-08256 114772-40-6 In Stock
Telmisartan Impurity 25 Impurity CS-EO-03034 1147892-29-2 Enquire
Telmisartan Impurity 26 Impurity CS-EO-03035 ---- In Stock
Telmisartan Impurity 27 Impurity CS-EO-03036 ---- In Stock
Telmisartan Impurity 28 Impurity CS-EO-03037 Not Available Enquire
Telmisartan Impurity 29 Impurity CS-EO-03038 Not Available Enquire
Telmisartan Impurity 30 Impurity CS-EO-03040 1219621-18-7 Enquire
Telmisartan Impurity 31 Impurity CS-EO-03041 884330-18-1 Enquire
Telmisartan Methyl Ester Impurity CS-O-08266 528560-93-2 In Stock
Telmisartan N-Desmethyl Impurity Impurity CS-O-08267 144701-81-5 In Stock
Telmisartan N-Desmethyl Impurity (Hydrate) Impurity CS-EO-03880 144701-81-5 (Freebase) Enquire
Telmisartan Related Compound A Impurity CS-O-43102 1282554-35-1 In Stock
Telmisartan stage-I Dimer Impurity Impurity CS-O-53831 ---- Enquire
Telmisartan-Dibromo Impurity Impurity CS-DG-00028 1352492-08-0 Enquire
4'-[4'-methyl-6-(1-methyl-1H-benzimidazole-2-yl)2-propyl-1H-... Impurity CS-O-35077 Not Available Enquire
CN-Desmethyl Telmisartan Impurity CS-DG-00029 144702-57-8 Enquire
Debenzoic Acid Bromotelmisartan Impurity CS-T-73971 1004548-55-3 Enquire
N-Butyryl-4-amino-3-methyl-5-nitrobenzoic acid Impurity CS-ZH-03369 959987-48-5 Enquire
Telmisartan Bromo Acid Impurity CS-O-08251 150766-86-2 Enquire
Telmisartan Bromo Amide Impurity CS-O-08252 147404-72-6 Enquire
Telmisartan Bromo Ethyl Ester Impurity CS-O-08253 133085-87-7 Enquire
TELMISARTAN CRS (CONTAINING A,B,C,E &F) Impurity CS-EG-03374 ---- Enquire
Telmisartan dibromo acid impurity Impurity CS-T-88936 1797894-62-2 Enquire
Telmisartan Dimer Impurity Impurity CS-T-61630 884330-14-7 Enquire
Telmisartan Ethyl Ester Impurity CS-O-08264 528560-94-3 Enquire
Telmisartan Impurity 19 Impurity CS-EO-02034 39627-24-2 Enquire
Telmisartan Impurity 5 Impurity CS-EO-01536 884330-10-3 Enquire
Telmisartan Impurity B Impurity CS-T-61628 1026438-56-1 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Methyl-2-propyl-1H-benzimidazole-6-carboxylic Acid Methyl ... Intermediate CS-T-35050 152628-00-7 In Stock
4-methylbiphenyl-2-carboxylic acid methyl ester Intermediate CS-O-31540 114772-34-8 In Stock
o-Nitrofluorobenzene Intermediate CS-T-59423 1493-27-2 In Stock
Telmisartan KSM II Intermediate CS-O-31539 25148-68-9 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Telmisartan Acyl-β-D-glucuronide Glucuronide CS-T-61629 250780-40-6 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Methyl-1,2-Phenylenediamine Fine Chemicals CS-DL-00575 4760-34-3 In Stock
4-(butanoylamino)-3-methylbenzoic acid Fine Chemicals CS-O-38254 1016696-74-4 Enquire
Methyl 4-butyramido-3-methylbenzoate Fine Chemicals CS-ZI-22041 301533-59-5 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-methyl-2-nitroso-1H-benzo[d][1,2,3]triazol-2-ium Nitrosamine CS-O-54573 ---- Enquire
3-amino-4-(butyl(nitroso)amino)-5-methylbenzoic acid Nitrosamine CS-O-54572 ---- Enquire
Desmethyl Nitroso Telmisartan impurity Nitrosamine CS-O-45060 ---- Enquire
Methyl 3-methyl-4-(N-nitrosobutyramido)benzoate Nitrosamine CS-O-54570 ---- Enquire
Methyl 4-(butyl(nitroso)amino)-3-methyl-5-nitrobenzoate Nitrosamine CS-O-54571 ---- Enquire
N-Nitroso N-Desmethyl Dibenzimidazole Nitrosamine CS-EO-03042 Not Available Enquire
N-Nitroso Telmisartan EP Impurity A Nitrosamine CS-O-44940 ---- Enquire
Telmisartan Nitroso Impurity 1 Nitrosamine CS-EO-04060 ---- Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Telmisartan Secondary Standards CS-SS-24016 144701-48-4 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Telmisartan Therapeutic CS-IP-00167 144701-48-4 Enquire
Telmisartan Therapeutic CS-O-02439 144701-48-4 In Stock
Telmisartan (1643419) Therapeutic CS-EB-02395 144701-48-4 In Stock
Telmisartan for peak identification (Y0000649) Therapeutic CS-EG-00568 144701-48-4 In Stock
Telmisartan for system suitability (Y0001003) Therapeutic CS-EG-00567 144701-48-4 In Stock