577-64-0 Asterric acid Benzoic acid, 2-(2-carboxy-3-hydroxy-5-methylphenoxy)-5-hydroxy-3-methoxy-, 1-methyl ester CAS 577-64-0
| CAS No. | 577-64-0 |
| Molecular Formula | C17H16O8 |
| Molecular Weight | 348.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
577-64-0 Asterric acid Benzoic acid, 2-(2-carboxy-3-hydroxy-5-methylphenoxy)-5-hydroxy-3-methoxy-, 1-methyl ester (CAS 577-64-0), molecular formula C17H16O8 and molecular weight 348.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 577-64-0 Asterric acid Benzoic acid, 2-(2-carboxy-3-hydroxy-5-methylphenoxy)-5-hydroxy-3-methoxy-, 1-methyl ester (C17H16O8) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 348.30 g/mol, it falls into the moderately-high-molecular-weight range. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C17H16O8 |
| Molecular Weight | 348.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
- Methyl 2-3-4-tri-O-acetyl-β-D-glucuronide methyl ester (CAS 34213-34-8)
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- 4-Bromo-N,N-dibutylbenzenesulfonamide (CAS 6419-78-9)
- Pyrasulfotole-desmethyl (CAS 936621-05-5)
- 2-Butyl-4-Chloro-1-Nitroso-1H-Imidazole-5-Carbaldehyde (CAS CATO-C3D-26174)
- 1-(4-Hydroxyphenyl)naphthalene (CAS 92964-54-0)
- (4-((Diethylamino)methyl)-3-fluorophenyl)boronic acid (CAS 1333121-78-0)
- 1-(6-Methoxybenzofuran-5-yl)-3-phenylpropane-1,3-dione (CAS 1017059-72-1)
- lithium acrylate (CAS 13270-28-5)
- N-Benzyl-1-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-5-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 321848-18-4)
- O-ethylisoureahydrogensulfate (CAS 68303-38-8)
- Lithium 6-chloropyridine-3-sulfinate (CAS 2138100-22-6)
- n-Cyclopentylsulfamoyl chloride (CAS 42065-66-7)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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