Hydroxymethanesulfinic acid CAS 79-25-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 79-25-4 |
| Molecular Formula | CH4O3S |
| Molecular Weight | 96.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Hydroxymethanesulfinic acid (CAS 79-25-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: CH4O3S. Molecular weight: 96.11 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | CH4O3S |
| Molecular Weight | 96.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Recommended Standards
- 1-Aminopyrazin-1-ium (CAS 53975-17-0)
- Paraformaldehyde-d2 (CAS 32008-59-6)
- Dimethyl-d6 Carbonate (CAS 108481-44-3)
- 2-(Methylamino)-1-(thiophen-3-yl)ethan-1-ol (CAS 1213777-94-6)
- tert-Butyl (1-(thiazol-2-yl)piperidin-4-yl)carbamate (CAS 943330-55-0)
- Ethyl 2-[(1R,4R)-4-[(dimethylcarbamoyl)amino]cyclohexyl]acetate (CAS 1642586-63-7)
- 4-Bromo-1-nitro-2-(trifluoromethoxy)benzene (CAS 1260879-28-4)
- 3-(2-Methoxyethoxy)phenol (CAS 245070-91-1)
- N-1-Cyclohexyl-N-1-ethyl-1,4-benzenediamine (CAS 105298-83-7)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
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