5-Chloro-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid CAS 90272-07-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 90272-07-4 |
| Molecular Formula | C9H5ClN2O3 |
| Molecular Weight | 224.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid (CAS 90272-07-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C9H5ClN2O3. Molecular weight: 224.60 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C9H5ClN2O3 |
| Molecular Weight | 224.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 1-(2-Chloro-6-nitrophenyl)-1H-1,2,4-triazole (CAS 1018053-08-1)
- 6-Chloro-3-nitroquinolin-4-ol (CAS 101861-61-4)
- 8-Chloro-2-oxo-2H-chromene-3-carboxylic acid (CAS 107747-67-1)
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- 2-Chloro-6-nitroquinazolin-4-amine (CAS 1279870-95-9)
- 2-Chloro-3-nitroquinolin-4-ol (CAS 1314946-36-5)
Recommended Standards
- 5-Chloro-3-nitroquinolin-4-ol (CAS 860235-96-7)
- 6-Chloro-2-oxo-2h-chromene-3-carboxylic acid (CAS 883-92-1)
- 5-Chloro-3-(3-nitrophenyl)-1h-1,2,4-triazole (CAS 59301-26-7)
- 1-(2-Chloroethyl)-3-(2,4-dimethylphenyl)urea (CAS 162376-66-1)
- 2-(4-Bromo-2-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805295-92-4)
- 5-Bromo-N-(2-Methylpyridin-4-Yl)Thiophene-2-Carboxamide (CAS 1468774-80-2)
- (S)-3-(3-fluorophenoxy)butanoic acid (CAS 1416445-07-2)
- 4-Bromo-6-methoxy-1H-benzo[d]imidazole (CAS 1360954-62-6)
- N-((Cyclohexylimino)methylene)-N-methylcyclohexanaminium iodide (CAS 36049-77-1)
- Vialox Peptide(Pentapeptide-3) diacetate (CAS 725232-44-0)
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