Sodium 4-methylbenzenesulfinate hydrate CAS 7257-26-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 7257-26-3 |
| Molecular Formula | C7H7O2S Na H2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 4-methylbenzenesulfinate hydrate (CAS 7257-26-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H7O2S Na H2O. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H7O2S Na H2O |
| Molecular Weight | 196.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Sulfur Atoms | 1 |
Related Sodium Standards
Recommended Standards
- (2-Bromophenyl)(4-chloro-3-methylphenyl)methanol (CAS 1443345-22-9)
- (S)-2-((S)-2-((S)-2-Amino-3-(1H-indol-3-yl)propanamido)-3-(1H-indol-3-yl)propanamido)propanoic acid (CAS 59005-78-6)
- N-(2-Hydroxyethyl)-3-oxobutanamide (CAS 24309-97-5)
- 3-(2-Iodophenyl)-1,4-dimethyl-1h-pyrazol-5-amine (CAS 1152664-20-4)
- 5444-75-7 R63ZWW1A13 2-Ethylhexyl benzoate Benzoic acid, 2-ethylhexyl ester EINECS 226-641-8 2-Ethyl-1-hexanol benzoate Ethylhexyl benzoate NSC 19155 UNII-R63ZWW1A13 EC 226-641-8 (CAS 5444-75-7)
- [(3-Phenoxyphenyl)methyl](propan-2-yl)amine hydrochloride (CAS 1240566-33-9)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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