Benzenesulfonic acid sesquihydrate CAS 5928-72-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 5928-72-3 |
| Molecular Formula | 2*C6H6O3S 3*H2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzenesulfonic acid sesquihydrate (CAS 5928-72-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: 2*C6H6O3S 3*H2O. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | 2*C6H6O3S 3*H2O |
| Molecular Weight | 176.19 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
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