4-[4-(Dimethylamino)benzylidene]-2-methyl-1,3-oxazol-5(4H)-one CAS 1787-23-1
| CAS No. | 1787-23-1 |
| Molecular Formula | C13H14N2O2 |
| Molecular Weight | 230.26 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.
4-[4-(Dimethylamino)benzylidene]-2-methyl-1,3-oxazol-5(4H)-one (CAS 1787-23-1) is a high-purity analytical reference standard with the molecular formula C13H14N2O2 and a molecular weight of 230.26 g/mol.
The molecular framework of 4-[4-(Dimethylamino)benzylidene]-2-methyl-1,3-oxazol-5(4H)-one (C13H14N2O2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 4-[4-(Dimethylamino)benzylidene]-2-methyl-1,3-oxazol-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.
Physical & Chemical Properties
| Molecular Formula | C13H14N2O2 |
| Molecular Weight | 230.26 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.) | 1957 |
| Nitrogen Atoms | 2 |
Related Dimethylamino Standards
- 2-(Dimethylamino)-2-(quinolin-3-yl)acetic acid (CAS 1007913-00-9)
- (e)-4-((Dimethylamino)methylene)-2-(p-tolyl)oxazol-5(4h)-one (CAS 154821-60-0)
- (2E)-3-(Dimethylamino)-2-(4-methoxybenzoyl)acrylonitrile (CAS 96219-74-8)
- (4E)-4-[1-(Dimethylamino)ethylidene]-2-phenyl-4,5-dihydro-1,3-oxazol-5-one (CAS 220684-41-3)
- 1-(5-(Dimethylamino)-2-methylphenyl)-1H-pyrrole-2,5-dione (CAS 64134-44-7)
- 2-Benzyl-4-((dimethylamino)methylene)oxazol-5(4H)-one (CAS 62190-98-1)
- 4-(((5-(Dimethylamino)furan-2-yl)methylene)amino)phenol (CAS 776232-62-3)
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Recommended Standards
- 1-tert-Butyl 3-methyl 3-aminoazetidine-1,3-dicarboxylate (CAS 1782647-31-7)
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- 4-((tert-Butoxycarbonyl)amino)pyrrolidine-2-carboxylic acid (CAS 1779643-67-2)
- N-Methoxy-N-methyl-4-(1H-pyrrol-1-yl)benzamide (CAS 179055-24-4)
- 1-Benzyl-3-methylpiperidin-4-amine (CAS 82378-86-7)
- 7-Chloro-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine (CAS 1260667-70-6)
- 4-(Pyrazin-2-yloxy)cyclohexan-1-amine (CAS 1342979-22-9)
- (5-Bromo-2-((neopentyloxy)carbonyl)phenyl)boronicacid (CAS 1309980-79-7)
- 3-Hydroxy-2-(5-nitro-2-oxopyridin-1(2H)-yl)propyl 4-chlorobenzoate (CAS 400076-76-8)
- 1-(4-Ethyl-3,5-dimethyl-2H-pyrrol-2-ylidene)ethanol (CAS 750511-61-6)
- Furo[2,3-b]pyridine-5-carboxamide (CAS 220957-44-8)
- (5-Fluoro-2-(1H-pyrrol-1-yl)pyridin-4-yl)boronic acid (CAS 2225175-82-4)
- N-benzyl-2H-indazol-7-amine (CAS 1042987-79-0)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
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