| CAS No. | 161099-42-9 |
| Molecular Formula | C21H22O4 |
| Molecular Weight | 338.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(4-Hydroxy-2-methoxy-3-(3-methylbut-2-en-1-yl)phenyl)-2H-chromen-7-ol.
3-(4-Hydroxy-2-methoxy-3-(3-methylbut-2-en-1-yl)phenyl)-2H-chromen-7-ol (CAS 161099-42-9) is a high-purity analytical reference standard with the molecular formula C21H22O4 and a molecular weight of 338.40 g/mol.
Based on its molecular formula C21H22O4, 3-(4-Hydroxy-2-methoxy-3-(3-methylbut-2-en-1-yl)phenyl)-2H-chromen-7-ol contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 338.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), 3-(4-Hydroxy-2-methoxy-3-(3-methylbut-2-en-1-yl)phenyl)-2H-chromen-7-ol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C21H22O4 |
| Molecular Weight | 338.40 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |