3,5,7-Trihydroxy-4H-chromen-4-one CAS 31721-95-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 31721-95-6 |
| Molecular Formula | C9H6O5 |
| Molecular Weight | 194.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5,7-Trihydroxy-4H-chromen-4-one (CAS 31721-95-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H6O5. Molecular weight: 194.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H6O5 |
| Molecular Weight | 194.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Related Trihydroxy Standards
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- 3-(2,3,4-Trihydroxy-phenyl)-acrylic acid (CAS 13058-13-4)
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