3-[(difluoromethyl)sulfanyl]thiophene-2-carboxylic acid CAS 1303890-49-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1303890-49-4 |
| Molecular Formula | C6H4F2O2S2 |
| Molecular Weight | 210.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[(difluoromethyl)sulfanyl]thiophene-2-carboxylic acid (CAS 1303890-49-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H4F2O2S2. Molecular weight: 210.22 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H4F2O2S2 |
| Molecular Weight | 210.22 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Sulfur Atoms | 2 |
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Recommended Standards
- 1-(2,5-Dimethylthiophen-3-yl)-2,2,2-trifluoroethan-1-ol (CAS 1292939-19-5)
- 1-(1,1-Dimethylethyl)-6,7-difluoro-1H-benzimidazole (CAS 1314987-35-3)
- 2-(4-Methyl-2-(trifluoromethyl)thiazol-5-yl)ethan-1-amine (CAS 1263281-04-4)
- (S)-2-Amino-2-methyl-4-phosphonobutanoic acid (CAS 157381-42-5)
- Clopidogrel thiol metabolite H2 (CAS 1415550-27-4)
- 904302-98-3 0TA0YE45QE Viquidacin [INN] Viquidacin (3R,4R)-4-((3S)-3-(3-Fluoro-6-methoxyquinolin-4-yl)-3-hydroxypropyl)-1-(2-((thiophen-2-yl)sulfanyl)ethyl)piperidine-3-carboxylic acid UNII-0TA0YE45QE (CAS 904302-98-3)
- 6-(hydroxymethyl)-3-Pyridinecarboxamide (CAS 119646-49-0)
- N-(2-aminopyrimidin-4-yl)acetamide (CAS 1695410-90-2)
- Cholic Acid Impurity 63 (CAS CATO-C4X-116063)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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