Ethyl 7,8-dichloro-4-oxo-1,4-dihydroquinoline-3-carboxylate CAS 175134-95-9
| CAS No. | 175134-95-9 |
| Molecular Formula | C12H9Cl2NO3 |
| Molecular Weight | 286.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 7,8-dichloro-4-oxo-1,4-dihydroquinoline-3-carboxylate 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.
Ethyl 7,8-dichloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 175134-95-9) is a high-purity analytical reference standard with the molecular formula C12H9Cl2NO3 and a molecular weight of 286.11 g/mol.
The molecular framework of Ethyl 7,8-dichloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (C12H9Cl2NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H9Cl2NO3 |
| Molecular Weight | 286.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 chloroform, dichloromethane, ethyl acetate, 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.) | 2007 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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- 3,4-Dichloro-1-(2-ethoxyphenyl)-1H-pyrrole-2,5-dione (CAS 138509-79-2)
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Recommended Standards
- 1-(1-(2,4-Dichlorophenyl)ethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1710345-05-3)
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- 1-(1-(3,4-Dichlorophenyl)ethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1707582-94-2)
- 2-(Difluoromethyl)-4-nitro-5-(trifluoromethoxy)pyridine-3-carboxaldehyde (CAS 1806772-86-0)
- 2-Oxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid (CAS 189497-99-2)
- 2,4-Dihydro-5-methoxy-4-methyl-3H-1,2,4-triazol-3-one (CAS 135302-13-5)
- 1-Butylcyclopentan-1-amine (CAS 68288-41-5)
- methyl 4-bromo-5-cyano-1H-pyrrole-2-carboxylate (CAS 1597781-24-2)
- 1-Chloro-2-fluoro-4-nitrobenzene (CAS 350-31-2)
- (2R,5R)-tert-Butyl 2,5-dimethylpiperazine-1-carboxylate hydrochloride (CAS 1700611-05-7)
- Chlorpromazine Hydrochloride (CAS 69-09-0)
- 6-(Indolin-1-yl)-5-methylnicotinonitrile (CAS 1355232-64-2)
- N-(4-((4-chlorophenyl)thio)-3-cyanophenyl)-4-fluorobenzamide (CAS 306980-47-2)
- Neuropeptide Y (3-36) (human, rat) trifluoroacetate salt (CAS 150138-78-6)
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