1-phenyl-5-thien-2-yl-1H-1,2,4-triazole-3-carboxylic acid CAS 929974-83-4
| CAS No. | 929974-83-4 |
| Molecular Formula | C13H9N3O2S |
| Molecular Weight | 271.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-phenyl-5-thien-2-yl-1H-1,2,4-triazole-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1-phenyl-5-thien-2-yl-1H-1,2,4-triazole-3-carboxylic acid (CAS 929974-83-4) is a high-purity analytical reference standard with the molecular formula C13H9N3O2S and a molecular weight of 271.29 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 1-phenyl-5-thien-2-yl-1H-1,2,4-triazole-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H9N3O2S |
| Molecular Weight | 271.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related phenyl Standards
- 1-benzyl-5-thien-2-ylimidazolidine-2,4-dione (CAS 875248-15-0)
- [(4-ethyl-5-thien-2-yl-4H-1,2,4-triazol-3-yl)thio]acetic acid (CAS 733030-98-3)
- 2-Thien-2-ylquinoline-4-carbohydrazide (CAS 39072-28-1)
- ethyl 7-thien-2-ylpyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 938016-74-1)
- ethyl [(4-thien-2-ylpyrimidin-2-yl)thio]acetate (CAS 937599-90-1)
- 2-[methyl(thien-2-ylcarbonyl)amino]benzoic acid (CAS 351000-22-1)
- Methyl 2-thien-2-ylimidazo[1,2-a]pyridine-6-carboxylate (CAS 1891281-74-5)
- 1-benzyl-3-thien-2-yl-1H-pyrazole-4-carboxylic acid (CAS 956411-88-4)
Recommended Standards
- 11-Oxo-10,11-dihydrodibenzo[b,f][1,4]thiazepine-8-carboxylic acid (CAS 440627-14-5)
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- 1-[(3-nitrophenyl)sulfonyl]piperazine (CAS 89474-78-2)
- 2-((2-((4-Methoxyphenyl)amino)-2-oxoethyl)sulfinyl)acetic acid (CAS 338953-91-6)
- 3-(aminomethyl)-N-tert-butylbenzamide hydrochloride (CAS 1251923-41-7)
- 1,4-O-Didesmethyl rac-Niranthin (CAS 81263-83-4)
- 2-Amino-3-[(4-aminophenyl)sulfanyl]propanoic acid (CAS 63129-86-2)
- 3-(2-(Aziridin-1-yl)ethoxy)-1-phenylisoquinoline (CAS 89721-21-1)
- (R)-4-(4-Fluorophenyl)pyrrolidin-2-one (CAS 894421-64-8)
- N-(4-Chlorophenyl)cyclohexanecarboxamide (CAS 142810-49-9)
- Methyl 1-((tert-butoxycarbonyl)amino)-5-azaspiro[2.4]Heptane-1-carboxylate (CAS 2306271-81-6)
- 1-Cyano-s-(4-fluorophenyl)-n-methylmethanesulfonamido (CAS 1267047-53-9)
- Methyl 4-aminopiperidine-1-carboxylate (CAS 1187160-88-8)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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