273196-04-6 6,7-Dimethyl-3-(2-oxo-2-phenyl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one CAS 273196-04-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 273196-04-6 |
| Molecular Formula | C18H16N2O2 |
| Molecular Weight | 292.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
273196-04-6 6,7-Dimethyl-3-(2-oxo-2-phenyl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one (CAS 273196-04-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H16N2O2. Molecular weight: 292.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H16N2O2 |
| Molecular Weight | 292.33 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- α-(6-Methoxy-2-naphthyl)-o-toluic Acid (CAS 94305-64-3)
- 4-Pyridin-4-yl-3a,4,5,9b-tetrahydro-3H-cyclopenta-[c]quinoline-8-carboxylic acid 4190AE 485320-01-2 C18H16N2O2 (CAS 485320-01-2)
- trans-1-(tert-Butoxycarbonyl)-4-(pyridin-2-yl)pyrrolidine-3-carboxylic acid (CAS 267876-09-5)
- 8-Amino-1,2,3,4-tetrahydroquinoxaline-5-carbonitrile (CAS 573758-53-9)
- 2-Chloro-N,N-dimethyl-9-(4-nitrobenzyl)-9H-purin-6-amine (CAS 115204-60-9)
- 7-Oxo-4,7-dihydro-1H-pyrazolo[4,3-b]pyridine-6-carbonitrile (CAS 59376-27-1)
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-bromobenzyl)propanoic acid (CAS 1260592-99-1)
- Thiotepa Impurity 12 (CAS 2835499-20-0)
- 6-Methyl-8-oxo-7,8-dihydroimidazo[1,5-a]pyrazine-1-carboxylic acid (CAS 1708428-08-3)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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