[(3Z)-2-Oxo-1-phenyl-2,3-dihydro-1H-indol-3-ylidene]amino cyclopropanecarboxylate CAS 478261-14-2
| CAS No. | 478261-14-2 |
| Molecular Formula | C18H14N2O3 |
| Molecular Weight | 306.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[(3Z)-2-Oxo-1-phenyl-2,3-dihydro-1H-indol-3-ylidene]amino cyclopropanecarboxylate (CAS 478261-14-2) is a high-purity analytical reference standard with the molecular formula C18H14N2O3 and a molecular weight of 306.32 g/mol.
[(3Z)-2-Oxo-1-phenyl-2,3-dihydro-1H-indol-3-ylidene]amino cyclopropanecarboxylate (C18H14N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), [(3Z)-2-Oxo-1-phenyl-2,3-dihydro-1H-indol-3-ylidene]amino cyclopropanecarboxylate 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 | C18H14N2O3 |
| Molecular Weight | 306.32 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (S)-2-amino-3-(1-(tert-butoxycarbonyl)-1H-pyrazolo[3,4-b]pyridin-5-yl)propanoic acid (CAS 2387566-94-9)
- [1,2,3]Triazolo[1,5-a]pyridine-3-carboxylic acid, 6-[[(1,1-dimethylethoxy)carbonyl]amino]-, ethyl ester (CAS 2007909-99-9)
- (R)-2-amino-3-(1-(tert-butoxycarbonyl)-1H-pyrazolo[3,4-b]pyridin-5-yl)propanoic acid (CAS 2387560-85-0)
- 1-(1H-benzo[d]imidazol-2-yl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol (CAS 909861-31-0)
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- 4-Amino-6-(trifluoromethoxy)-2-(trifluoromethyl)nicotinonitrile (CAS 1803549-50-9)
- (4-Methyloxazol-2-yl)methanol (CAS 1240603-14-8)
- Benzyl 1H-indole-4-carboxylate (CAS 84401-11-6)
- Isoindolin-5-amine dihydrochloride (CAS 1232785-01-1)
- 1-Iodo-4-methoxynaphthalene (CAS 2607-25-2)
- N-[1-(2-cyanoethyl)-3-methyl-1H-pyrazol-5-yl]acetamide (CAS 1181457-80-6)
- N'-(4-Bromobenzylidene)-2-(4-chloro-2-methylphenoxy)acetohydrazide (CAS 329049-30-1)
- 2',5'-Dimethylbiphenyl-3-carboxylic acid (CAS 1181626-10-7)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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