(4R)-3-(3-Methyl-1-oxobutyl)-4-(phenylmethyl)-2-oxazolidinone (4R)-4-Benzyl-3-isovaleryloxazolidin-2-one (R)-3-(3-Methylbutanoyl)-4-benzyloxazolidin-2-one 145589-03-3 4R-Benzyl-3-(3-methylbutyryl)oxazolidin-2-one CAS 145589-03-3
| CAS No. | 145589-03-3 |
| Molecular Formula | C15H19NO3 |
| Molecular Weight | 261.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of (4R)-3-(3-Methyl-1-oxobutyl)-4-(phenylmethyl)-2-oxazolidinone (4R)-4-Benzyl-3-isovaleryloxazolidin-2-one (R)-3-(3-Methylbutanoyl)-4-benzyloxazolidin-2-one 145589-03-3 4R-Benzyl-3-(3-methylbutyryl)oxazolidin-2-one (C15H19NO3) is characterized by a nitrogen-containing heterocyclic scaffold, 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.
(4R)-3-(3-Methyl-1-oxobutyl)-4-(phenylmethyl)-2-oxazolidinone (4R)-4-Benzyl-3-isovaleryloxazolidin-2-one (R)-3-(3-Methylbutanoyl)-4-benzyloxazolidin-2-one 145589-03-3 4R-Benzyl-3-(3-methylbutyryl)oxazolidin-2-one (CAS 145589-03-3), molecular formula C15H19NO3 and molecular weight 261.32 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C15H19NO3 |
| Molecular Weight | 261.32 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- 2,6-Dimethyl-1H-indole-3-(tert-butylperoxycarboxylate) (CAS 1448259-52-6)
- N-Benzyl-1-(2-methyl-1,3-dioxolan-2-yl)cyclopropane-1-carboxamide (CAS 147011-40-3)
- N-((6-chloropyridazin-3-yl)methyl)cyclopropanamine (CAS 1289386-54-4)
- 5-(Chloromethyl)-1-ethyl-4-methyl-1H-imidazole hydrochloride (CAS 1256560-94-7)
- (R)-3-(azetidin-2-yl)propanoic acid (CAS 477585-77-6)
- 4,6-Diiododibenzo[b,d]furan (CAS 137959-93-4)
- 5-Bromo-8-chloroquinoxaline (CAS 2227206-68-8)
- Mesoporphyrin IX (CAS 493-90-3)
- 5-((4,5-Dimethyl-4H-1,2,4-triazol-3-yl)thio)furan-2-carbaldehyde (CAS 728035-62-9)
- 4-Chloro-7-(4-chlorophenyl)-5-phenyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 507273-41-8)
- 1-(2-sec-Butylphenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 556007-05-7)
- Semaglutide impurity 73 (CAS CATO-C4X-222673)
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