DMSO — Pharmaceutical Excipient Grade
Product Introduction
Basic Information
· Molecular Formula: C₂H₆OS
· CAS No.: 67‑68‑5
· Standard: ChP 2025
Technical Specifications
| Item | Specification |
|---|---|
| Assay (on an anhydrous basis) ω/% | ≥99.5 |
| Water, ω/% | ≤0.2 |
| Acidity (Volume of 0.01 mol/L NaOH titrant consumed) | ≤ 5.0 mL |
| Refractive Index, nD²⁰ | 1.478–1.480 |
| Crystallization Point, °C | ≥18.3 |
| Residue on Evaporation, % | ≤0.01 |
| Density (20 °C), g/cm³ | 1.095–1.104 |
| Microbial Limits | Aerobic Bacterial Count, cfu/mL: ≤ 10² Yeasts and Molds Count, cfu/mL: ≤ 10² Negative for Staphylococcus aureus and Escherichia coli per 1 g |
| Bacterial Endotoxins | Complies |
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