4',5-dihydroxy-6,7-dimethoxyflavone 5-hydroxy-2-(4-hydroxyphenyl)-6,7-dimethoxy-4H-1-benzopyran-4-one 6601-62-3 7-Methylcapillarisin CHEBI:81337 Scrophulein cirsimaritin CAS 6601-62-3
| CAS No. | 6601-62-3 |
| Molecular Formula | C17H26O6 |
| Molecular Weight | 326.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4',5-dihydroxy-6,7-dimethoxyflavone 5-hydroxy-2-(4-hydroxyphenyl)-6,7-dimethoxy-4H-1-benzopyran-4-one 6601-62-3 7-Methylcapillarisin CHEBI:81337 Scrophulein cirsimaritin (CAS 6601-62-3) is a high-purity analytical reference standard with the molecular formula C17H26O6 and a molecular weight of 326.38 g/mol.
4',5-dihydroxy-6,7-dimethoxyflavone 5-hydroxy-2-(4-hydroxyphenyl)-6,7-dimethoxy-4H-1-benzopyran-4-one 6601-62-3 7-Methylcapillarisin CHEBI:81337 Scrophulein cirsimaritin (C17H26O6) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C17H26O6 |
| Molecular Weight | 326.38 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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