(-)-Diacetyl-D-tartaric anhydride CAS 70728-23-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 70728-23-3 |
| Molecular Formula | C8H8O7 |
| Molecular Weight | 216.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(-)-Diacetyl-D-tartaric anhydride (CAS 70728-23-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H8O7. Molecular weight: 216.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H8O7 |
| Molecular Weight | 216.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
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