3-Chloro-4-hydroxybenzenesulfonyl chloride CAS 25319-94-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 25319-94-2 |
| Molecular Formula | C6H4Cl2O3S |
| Molecular Weight | 227.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-4-hydroxybenzenesulfonyl chloride (CAS 25319-94-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C6H4Cl2O3S. Molecular weight: 227.07 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C6H4Cl2O3S |
| Molecular Weight | 227.07 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.) | 1964 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-5-hydroxybenzenesulfonyl Chloride (CAS 1261449-72-2)
- 4-Chloro-2-hydroxybenzene-1-sulfonyl chloride (CAS 1261514-57-1)
- 2-Chloro-6-hydroxybenzene-1-sulfonyl chloride (CAS 1261568-90-4)
- 3-Chloro-2-hydroxybenzene-1-sulfonyl chloride (CAS 1261585-06-1)
- 4-chloro-3-hydroxybenzene-1-sulfonyl chloride (CAS 1261761-11-8)
- 5-Chloro-2-hydroxybenzene-1-sulfonyl chloride (CAS 25319-95-3)
- 4-Chloro-3-(2-chloroethyl)cinnoline (CAS 131110-40-2)
- 4-Chloro-2-(chloromethyl)-6-methylquinazoline (CAS 147006-37-9)
Recommended Standards
- 3-Bromo-5-(difluoromethyl)-2-methylthiophene (CAS 2091602-53-6)
- 3-Chlorophenyl sulfurochloridate (CAS 67628-46-0)
- 3,5-Dichlorobenzenesulfonic acid (CAS 33469-47-5)
- (E)-2-((4-fluorobenzyl)thio)-5-styryl-1,3,4-oxadiazole (CAS 383148-19-4)
- 2,4,6-Trihydroxybenzaldehyde 2,4-Diacetate (CAS 164329-24-2)
- Ethyl 1-Methylbenzo[d][1,2,3]triazole-5-carboxylate (CAS 499785-52-3)
- 1-(4-Methoxyphenyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (CAS 1177195-12-8)
- 1H-Pyrrolo[3,4-d]pyrimidin-4-ol (CAS 39455-98-6)
- (2E,2'E)-4,4'-(naphthalene-1,5-diylbis(azanediyl))bis(4-oxobut-2-enoic acid) (CAS 293323-14-5)
- D-Gln24-Tirzepatide (CAS CATO-CPTD788910)
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