Benzyl 7-hydroxy-2,2-diphenylbenzo[d][1,3]dioxole-5-carboxylate CAS 1159977-38-4
| CAS No. | 1159977-38-4 |
| Molecular Formula | C27H20O5 |
| Molecular Weight | 424.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Benzyl 7-hydroxy-2,2-diphenylbenzo[d][1,3]dioxole-5-carboxylate (CAS 1159977-38-4), molecular formula C27H20O5 and molecular weight 424.44 g/mol, is a CATO reference standard with documented purity and traceability.
Benzyl 7-hydroxy-2,2-diphenylbenzo[d][1,3]dioxole-5-carboxylate (C27H20O5) contains a steroid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C27H20O5 |
| Molecular Weight | 424.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
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