(6R,7S)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic Acid Diphenylmethyl Ester CAS 1187769-74-9
| CAS No. | 1187769-74-9 |
| Molecular Formula | C28H24N2O5 |
| Molecular Weight | 468.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(6R,7S)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic Acid Diphenylmethyl Ester (CAS 1187769-74-9), molecular formula C28H24N2O5 and molecular weight 468.50 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (6R,7S)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic Acid Diphenylmethyl Ester (C28H24N2O5) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 468.50 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).
As a certified reference material (CRM), (6R,7S)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic Acid Diphenylmethyl Ester 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 | C28H24N2O5 |
| Molecular Weight | 468.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Recommended Standards
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- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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