5-Methyl-1,3,4-thiadiazole-2-carboxylic Acid CAS 501698-31-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 501698-31-3 |
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Methyl-1,3,4-thiadiazole-2-carboxylic Acid (CAS 501698-31-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H4N2O2S. Molecular weight: 144.15 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 1,3,4-thiadiazole-2-carboxylate (CAS 1330751-02-4)
- 4-Methyl-1,2,3-thiadiazole-5-carboxylic Acid (CAS 18212-21-0)
- 4-Methyl-1,2,5-thiadiazole-3-carboxylic acid (CAS 99390-23-5)
- 5-Methyl-1,2,3-thiadiazole-4-carboxylic acid (CAS 22097-10-5)
- Methyl 1,2,3-thiadiazole-4-carboxylate (CAS 3989-35-3)
- Methyl 1,2,3-thiadiazole-5-carboxylate (CAS 81699-19-6)
- methyl 1,2,5-thiadiazole-3-carboxylate (CAS 63875-20-7)
- 1,3,4-Thiadiazole-2-carbohydrazide (CAS 1330755-61-7)
Recommended Standards
- 6-Hydroxy-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 5658-01-5)
- 4-Methoxy-1,2,5-thiadiazole-3-carbaldehyde (CAS 78741-15-8)
- 4-Hydroxythiophene-3-carboxylic acid (CAS 50624-50-5)
- 2-Ethoxycarbonyl-2-(trifluoromethyl)cyclopropanecarboxylicacid (CAS 2250242-02-3)
- 5-(1-Isopropylpiperidin-2-yl)pyridin-2-amine (CAS 1352490-97-1)
- Trans-4-(1-aminoethyl)-N-(pyridin-4-yl)cyclohexanecarboxamide (CAS 129758-26-5)
- 2-(Oxazol-2-yl)pyrimidine-5-carboxylic acid (CAS 1447606-41-8)
- 4,8-Dimethyl-2-(morpholin-4-yl)quinoline (CAS 34500-48-6)
- 2,4-Dinitrophenylhydrazine (CAS 119-26-6)
- Semaglutide impurity 103 (CAS 1446013-07-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com