4-Chloro-3-(trifluoromethyl)benzenesulfonic acid CAS 1644-79-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1644-79-7 |
| Molecular Formula | C7H4ClF3O3S |
| Molecular Weight | 260.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-3-(trifluoromethyl)benzenesulfonic acid (CAS 1644-79-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H4ClF3O3S. Molecular weight: 260.62 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C7H4ClF3O3S |
| Molecular Weight | 260.62 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1957 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-2-(methylsulfonyl)-6-(trifluoromethyl)pyrimidine (CAS 119610-21-8)
- 2-Chloro-5-(trifluoromethyl)pyridine-3-sulfonamide (CAS 1208081-89-3)
- 2-Chloro-6-trifluoromethyl-pyridine-3-sulfonic acid amide (CAS 1208081-97-3)
- 6-Chloro-5-(trifluoromethyl)pyridine-3-sulfonamide (CAS 1228875-16-8)
- 3-Chloro-5-(trifluoromethyl)pyridine-2-sulfonamide (CAS 1249907-95-6)
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- 5-Chloro-3-(2,2,2-trifluoroethoxy)thiophene-2-carboxylic acid (CAS 1774902-56-5)
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Recommended Standards
- 2-(difluoromethoxy)-5-fluorobenzene-1-sulfonyl chloride (CAS 1261862-25-2)
- 4-Amino-5-(difluoromethyl)-2-fluoropyridine-3-sulfonyl chloride (CAS 1803697-26-8)
- 4-(Difluoromethoxy)-2-fluorobenzene-1-sulfonyl chloride (CAS 1261825-39-1)
- 2-Fluoro-5-(trifluoromethyl)pyridin-3-amine (CAS 72600-65-8)
- (3-(3,3,3-Trifluoropropoxy)phenyl)methanol (CAS 1341968-92-0)
- 5-Bromo-6-(difluoromethyl)-N-isopropylpyrimidin-4-amine (CAS 1706429-25-5)
- 3-Oxa-8-thiabicyclo[3.2.1]octane-2,4-dione (CAS 6007-84-7)
- (4-((4-Chlorophenyl)sulfonyl)piperazin-1-yl)(phenyl)methanone (CAS 333757-02-1)
- Methyl 1-ethyl-2-methylbenzimidazole-5-carboxylate (CAS 306278-47-7)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com