4-hydroxy benzene-1-sulfonyl chloride CAS 4025-67-6
Purity >95%In StockPharmaceutical Standards
| CAS No. | 4025-67-6 |
| Molecular Formula | C6H5ClO3S |
| Molecular Weight | 192.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-hydroxy benzene-1-sulfonyl chloride (CAS 4025-67-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H5ClO3S. Molecular weight: 192.62 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H5ClO3S |
| Molecular Weight | 192.62 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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- 1-(4-Hydroxy-3,5-dimethylphenyl)butan-1-one (CAS 104008-42-6)
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Recommended Standards
- 4-Chloropyridine-3-sulfonamide hydrochloride (CAS 777854-85-0)
- 5-(Ethylthio)-1,3,4-oxadiazole-2-carbonyl chloride (CAS 62373-37-9)
- 4-Chloropyridine-2-Sulfonamide (CAS 57724-91-1)
- 146849-92-5 1-(4-Ethoxy-3,5-dimethoxyphenyl)propan-2-amine DTXSID40658382 (CAS 146849-92-5)
- 3-Chloro-2,4-dimethyl-6-hydroxybenzaldehyde (CAS 81322-67-0)
- n-(Prop-2-yn-1-yl)morpholine-4-carboxamide (CAS 643083-75-4)
- (6-Bromo-5-chloropyridin-2-yl)methanol (CAS 1228898-49-4)
- 2-amino-N-(4-iodophenyl)acetamide hydrochloride (CAS 855482-29-0)
- 3-((Tetrahydrofuran-3-yl)oxy)propane-1-sulfonyl chloride (CAS 1490502-05-0)
- Insulin Degludec Impurity 19 (CAS CATO-C4X-215719)
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