N-(2,3-Dimethylphenyl)-3-oxobutanamide CAS 55909-76-7
| CAS No. | 55909-76-7 |
| Molecular Formula | C12H15NO2 |
| Molecular Weight | 205.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(2,3-Dimethylphenyl)-3-oxobutanamide (CAS 55909-76-7), molecular formula C12H15NO2 and molecular weight 205.25 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-(2,3-Dimethylphenyl)-3-oxobutanamide (C12H15NO2) is characterized by an amino-acid-derived structure, 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), N-(2,3-Dimethylphenyl)-3-oxobutanamide 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 | C12H15NO2 |
| Molecular Weight | 205.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
Related N Standards
- (2,4-Dimethylphenyl)(3-hydroxyazetidin-1-yl)methanone (CAS 1340242-76-3)
- (3,4-Dimethylphenyl)(3-hydroxyazetidin-1-yl)methanone (CAS 1342412-25-2)
- (3,5-Dimethylphenyl)(3-hydroxyazetidin-1-yl)methanone (CAS 1342538-36-6)
- (2,5-Dimethylphenyl)(3-hydroxyazetidin-1-yl)methanone (CAS 1342569-67-8)
- n-(2,3-Dimethylphenyl)-3-oxobutanamide (CAS 80357-48-8)
- N-(2,5-dimethylphenyl)-3-oxobutanamide (CAS 3785-25-9)
- N-(2,6-dimethylphenyl)-3-oxobutanamide (CAS 52793-02-9)
- n-(3,4-Dimethylphenyl)-3-oxobutanamide (CAS 50334-96-8)
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