4-(Methylthio)benzene-1-sulfonyl chloride, 97% CAS 1129-25-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1129-25-5 |
| Molecular Formula | C7H7ClO2S2 |
| Molecular Weight | 222.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(Methylthio)benzene-1-sulfonyl chloride, 97% (CAS 1129-25-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H7ClO2S2. Molecular weight: 222.71 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C7H7ClO2S2 |
| Molecular Weight | 222.71 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
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Recommended Standards
- 2-Chloro-4-(pentan-3-ylamino)benzonitrile (CAS 1097794-79-0)
- 4-Chloro-2-(pentylamino)benzonitrile (CAS 1156962-93-4)
- 2-Chloro-4-(pentylamino)benzonitrile (CAS 1094493-65-8)
- Methyl (2S,4S)-4-(2-methoxy-4-methylphenoxy)-2-pyrrolidinecarboxylate (CAS 1217707-44-2)
- Isocorydine N-Oxide (CAS 25405-80-5)
- 1-(Benzyloxy)-3-methyl-5-nitrobenzene (CAS 1881291-17-3)
- Acitretin Impurity 4 (CAS 20469-61-8)
- Methyl 8-methoxyindolizine-7-carboxylate (CAS 1706460-04-9)
- 4,4'-Bicyclohexanone (CAS 23391-99-3)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
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