4-(Trifluoromethyl)thiophene-3-sulfonyl chloride CAS 1855675-37-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1855675-37-4 |
| Molecular Formula | C5H2ClF3O2S2 |
| Molecular Weight | 250.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Trifluoromethyl)thiophene-3-sulfonyl chloride (CAS 1855675-37-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H2ClF3O2S2. Molecular weight: 250.65 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H2ClF3O2S2 |
| Molecular Weight | 250.65 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 2 |
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Recommended Standards
- 5-Chloro-2-(4-fluorophenoxy)benzaldehyde (CAS 1711704-46-9)
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- 4-Chloro-2-methyl-6-(trifluoromethyl)-5,6,7,8-tetrahydroquinazoline (CAS 1956325-86-2)
- (3,4-Difluoro-5-(pentyloxy)phenyl)(methyl)sulfane (CAS 1443335-39-4)
- 3-(2,4-Dichlorophenyl)-1-(m-tolyl)-1H-pyrazole-5-carboxylic acid (CAS 618383-12-3)
- 4-(1-Benzothiophen-2-yl)-2-(pyridin-2-yl)pyrimidine (CAS 866131-43-3)
- Benzyl 4-(piperidin-4-yl)piperazine-1-carboxylate (CAS 688020-80-6)
- ethyl 6-(chloromethyl)-4-(4-chlorophenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 475042-34-3)
- Methyl 2-[5-[2-(2,4-Dichlorophenoxy)phenyl]-2H-tetrazol-2-yl]acetate (CAS 1314406-38-6)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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