3-(Chlorosulfonyl)-4-hydroxybenzoic acid CAS 77719-02-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 77719-02-9 |
| Molecular Formula | C7H5ClO5S |
| Molecular Weight | 236.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 3-(Chlorosulfonyl)-4-hydroxybenzoic acid (CAS 77719-02-9) pharmaceutical standards reference standard. Molecular formula: C7H5ClO5S. Molecular weight: 236.63 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C7H5ClO5S |
| Molecular Weight | 236.63 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorosulfonyl Standards
- 4-(Chlorosulfonyl)-2-hydroxybenzoic acid (CAS 98273-15-5)
- Ethyl 3-(chlorosulfonyl)-2,2-difluoropropanoate (CAS 1602961-92-1)
- Methyl 5-(chlorosulfonyl)picolinate (CAS 1063733-25-4)
- Methyl 2-(chlorosulfonyl)nicotinate (CAS 112006-52-7)
- Methyl 6-(chlorosulfonyl)picolinate (CAS 1314922-50-3)
- Methyl 3-(Chlorosulfonyl)isonicotinate (CAS 90488-92-9)
- 4-(Chlorosulfonyl)-1-ethyl-1h-pyrrole-2-carboxylic acid (CAS 1423031-53-1)
- Methyl 4-(chlorosulfonyl)-1-methyl-1h-pyrrole-2-carboxylate (CAS 69812-32-4)
Recommended Standards
- 2-Chloro-6-nitrobenzene-1-sulfonamide (CAS 89581-71-5)
- 3-Chloro-4-nitrobenzenesulfonamide (CAS 93745-74-5)
- 2-Chloro-5-sulfobenzoic acid (CAS 40284-70-6)
- 2-(Aminomethyl)-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-5-carboxaldehyde (CAS 1361700-95-9)
- 2-(2-(Difluoromethoxy)-5-nitrobenzoyl)pyridine (CAS 1261531-87-6)
- (3E)-1-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-3-{[(2,4-dichlorophenyl)methoxy]imino}propan-1-one (CAS 478039-71-3)
- 1-(bromomethyl)-3-(trideuteriomethyl)benzene (CAS 114563-28-9)
- n-Cycloheptylquinolin-5-amine (CAS 1036533-15-9)
- Ethyl 2-(4-bromo-2-cyano-5-nitrophenyl)acetate (CAS 1806062-47-4)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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