(6R-trans)-7-(Benzoylamino)-3-methyl-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester CAS 81370-17-4
| CAS No. | 81370-17-4 |
| Molecular Formula | C28H24N2O5 |
| Molecular Weight | 468.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (6R-trans)-7-(Benzoylamino)-3-methyl-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
(6R-trans)-7-(Benzoylamino)-3-methyl-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester (CAS 81370-17-4) is a high-purity analytical reference standard with the molecular formula C28H24N2O5 and a molecular weight of 468.50 g/mol.
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 | 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.) | 1980 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (3S,6S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-oxo-1,2,3,4,6,7-hexahydroazepino[3,2,1-hi]indole-6-carboxylic acid (CAS 204326-24-9)
- (Methylenebis(2-hydroxy-4-methoxy-5,1-phenylene))bis(phenylmethanone) (CAS 68716-15-4)
- (2R,6R,7R)-Benzhydryl 7-benzamido-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylate (CAS 67977-91-7)
- (S)-2,5-Dioxopyrrolidin-1-yl 3-(4-(benzyloxy)phenyl)-2-((tert-butoxycarbonyl)amino)propanoate (CAS 27601-29-2)
- 3-[(Dimethylamino)methyl]aniline (CAS 27958-77-6)
- Momordicoside L (CAS 81348-83-6)
- 1,3-Phenylenebis((4-bromophenyl)methanone) (CAS 136039-69-5)
- 3-(Chloromethyl)-5-(3,4-dichlorophenyl)-1,2,4-oxadiazole (CAS 287917-57-1)
- UiO 66 (CAS 1072413-89-8)
- 3-(Difluoromethoxy)tetrahydro-4H-pyran-4-one (CAS 2141137-50-8)
- [(2,6-Dichloro-benzyl)-isopropyl-amino]-acetic acid (CAS 1179208-46-8)
- 3159AE 425413-52-1 C11H15NO4S N-(3,4-Dimethylphenyl)-N-(methylsulfonyl)-glycine (CAS 425413-52-1)
- [1-(2,2-difluoroethyl)-1H-pyrazol-4-yl]methanol (CAS 1341536-55-7)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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