4-((Dimethylamino)methylene)-2-phenyloxazol-5(4H)-one CAS 51254-00-3
| CAS No. | 51254-00-3 |
| Molecular Formula | C12H12N2O2 |
| Molecular Weight | 216.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-((Dimethylamino)methylene)-2-phenyloxazol-5(4H)-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.
4-((Dimethylamino)methylene)-2-phenyloxazol-5(4H)-one (CAS 51254-00-3), molecular formula C12H12N2O2 and molecular weight 216.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-((Dimethylamino)methylene)-2-phenyloxazol-5(4H)-one (C12H12N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 216.24 g/mol, it falls into the medium-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.
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.
Physical & Chemical Properties
| Molecular Formula | C12H12N2O2 |
| Molecular Weight | 216.24 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
Related Dimethylamino Standards
- 2-(Dimethylamino)quinoline-5-carboxylic acid (CAS 1092287-35-8)
- 2-(Dimethylamino)quinoline-7-carboxylic acid (CAS 1092287-50-7)
- 1-(Dimethylamino)isoquinoline-3-carboxylic acid (CAS 1152913-05-7)
- 2-(Dimethylamino)-4-hydroxyquinoline-3-carbaldehyde (CAS 172753-42-3)
- (4Z)-4-[(Dimethylamino)methylidene]-3-phenyl-4,5-dihydro-1,2-oxazol-5-one (CAS 5272-46-8)
- 1-(3-(Dimethylamino)phenyl)-1H-pyrrole-2,5-dione (CAS 64164-81-4)
- 1-[4-(dimethylamino)phenyl]-2,5-dihydro-1h-pyrrole-2,5-dione (CAS 6953-81-7)
- 2-(Dimethylamino)quinoline-4-carboxylic acid (CAS 933728-79-1)
Recommended Standards
- 4-((2,4-Diaminopyrimidin-5-yl)methyl)phenol (CAS 30077-67-9)
- 4-(2-(1H-Imidazol-1-yl)ethoxy)benzaldehyde (CAS 205371-43-3)
- 4-((1-Methyl-1H-imidazol-5-yl)methoxy)benzaldehyde (CAS 646071-63-8)
- 4-(2-Oxopropyl)-1,5-dihydro-2H-benzo[b][1,4]diazepin-2-one (CAS 669724-40-7)
- 4-Cyano-3-ethyl-2-hydroxybenzene-1-sulfonyl chloride (CAS 1805653-86-4)
- 6,7-Diaminoheptanoic acid (CAS 875247-31-7)
- 5-tert-Butyl-2-nitrophenol (CAS 5651-77-4)
- 2-Chloromethyl-4-methyl-5-pentafluoroethylpyridine (CAS 1246466-49-8)
- 3-(3-Methoxyphenyl)-1-methylpyrrolidin-3-yl propionate (CAS 64623-36-5)
- 2-Bromo-5-hydroxynicotinamide (CAS 2384749-08-8)
- 4-(2-Methyl-1H-benzo[d]imidazol-1-yl)benzoic acid (CAS 1021144-32-0)
- (1S,3R,6S)-6-((R,E)-3-Hydroxybut-1-en-1-yl)-6-methoxy-1,5,5-trimethylcyclohexane-1,3-diol (CAS 956869-95-7)
- Bromo-PEG6-alcohol (CAS 136399-05-8)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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