Sodium sulfite CAS 7757-83-7
Purity 100μg/mL in FormaldehydeIn StockPharmaceutical Standards
| CAS No. | 7757-83-7 |
| Molecular Formula | O3S 2*Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium sulfite (CAS 7757-83-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: O3S 2*Na. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | O3S 2*Na |
| Molecular Weight | 103.05 g/mol |
| Purity | 100μg/mL in Formaldehyde |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1959 |
| Sulfur Atoms | 1 |
Related Sodium Standards
- Sodium sulfite heptahydrate (CAS 10102-15-5)
- potassium sulfite (CAS 10117-38-1)
- Ammonium sulfite solution (CAS 10196-04-0)
- Calcium sulfite (CAS 10257-55-3)
- Calcium sulfite (CAS 15091-91-5)
- Calcium sulfite hemihydrate (CAS 29501-28-8)
- KM-003 (sulfite) (CAS 587879-54-7)
- Zinc sulfite dihydrate (CAS 7488-52-0)
Recommended Standards
- 5-Amino-1-methylindoline (CAS 64180-07-0)
- 4-Methyl-1,2,3,4-tetrahydro-9-acridinecarboxylic acid (CAS 436092-44-3)
- (2-Ethylphenyl)(pyridin-2-yl)methanone (CAS 1443307-17-2)
- 3-{[(2S,4R)-4-methoxypyrrolidin-2-yl]methoxy}pyridine dihydrochloride (CAS 228857-32-7)
- Methyl 3-((3-aminothiophen-2-yl)thio)propanoate (CAS 1287218-52-3)
- 4-Bromo-7-fluoro-6-methoxycinnoline (CAS 949159-94-8)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
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