2-[(E)-(3-Nitrophenyl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one CAS 866138-42-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 866138-42-3 |
| Molecular Formula | C19H14N2O3 |
| Molecular Weight | 318.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-[(E)-(3-Nitrophenyl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one (CAS 866138-42-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H14N2O3. Molecular weight: 318.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H14N2O3 |
| Molecular Weight | 318.33 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
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- (R)-3-(2,2,5,5-Tetramethyl-1,3-dioxane-4-carboxamido)propanoic acid (CAS 167308-62-5)
- {[3-(2-Dimethylamino-5-trifluoromethyl-pyridin-3-yl)-benzyl]-methyl-amino}-acetic acid (CAS 1311279-74-9)
- (2R,5S)-L-Menthol-5-(acetyloxy)-1,3-oxathiolane-2-carboxylate (CAS 147126-65-6)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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