11-Methyl-3-(5-methyl-2-furyl)-2,3,4,5-tetrahydro-1H-dibenzo[b,e][1,4]diazepin-1-one CAS 1428139-40-5
| CAS No. | 1428139-40-5 |
| Molecular Formula | C19H18N2O2 |
| Molecular Weight | 306.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 11-Methyl-3-(5-methyl-2-furyl)-2,3,4,5-tetrahydro-1H-dibenzo[b,e][1,4]diazepin-1-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
11-Methyl-3-(5-methyl-2-furyl)-2,3,4,5-tetrahydro-1H-dibenzo[b,e][1,4]diazepin-1-one (CAS 1428139-40-5), molecular formula C19H18N2O2 and molecular weight 306.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 11-Methyl-3-(5-methyl-2-furyl)-2,3,4,5-tetrahydro-1H-dibenzo[b,e][1,4]diazepin-1-one (C19H18N2O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 11-Methyl-3-(5-methyl-2-furyl)-2,3,4,5-tetrahydro-1H-dibenzo[b,e][1,4]diazepin-1-one 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.
Physical & Chemical Properties
| Molecular Formula | C19H18N2O2 |
| Molecular Weight | 306.36 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
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