| CAS No. | 439096-44-3 |
| Molecular Formula | C21H23NO7 |
| Molecular Weight | 401.41 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 Methyl 2-[4-(3,4,5-trimethoxybenzoyl)-3,4-dihydro-2H-1,4-benzoxazin-3-yl]acetate.
Methyl 2-[4-(3,4,5-trimethoxybenzoyl)-3,4-dihydro-2H-1,4-benzoxazin-3-yl]acetate (CAS 439096-44-3) is a high-purity analytical reference standard with the molecular formula C21H23NO7 and a molecular weight of 401.41 g/mol.
Structurally, Methyl 2-[4-(3,4,5-trimethoxybenzoyl)-3,4-dihydro-2H-1,4-benzoxazin-3-yl]acetate (C21H23NO7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 401.41 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 2-[4-(3,4,5-trimethoxybenzoyl)-3,4-dihydro-2H-1,4-benzoxazin-3-yl]acetate 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 | C21H23NO7 |
| Molecular Weight | 401.41 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |