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7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

Also known as: 1-Ethyl-7-chloro-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid, 7-Chloro-1,4-dihydro-1-ethyl-6-fluoro-4-oxo-3-quinolinecarboxylic acid, 7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid, 7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, 7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid, Norfloxacin EP Impurity A, Norfloxacin impurity A, 3-Quinolinecarboxylic acid, 7-chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-, AKOS 1303, MFCD00792459

7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (CAS 68077-26-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H9ClFNO3 and a molecular weight of 269.656 g/mol. Key properties include a melting point of 245°C, a boiling point of 437.9±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 218.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68077-26-9
Jingsj CID
J-3744-5
Molecular Formula
C12H9ClFNO3
Molecular Weight
269.656 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point245°C
Boiling Point437.9±45.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point218.7±28.7 °C
Exact Mass269.025513
PSA59.30000
LogP2.32
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.601

Customs & Trade Information

HS Code2933499090
Summary2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid?

The CAS number of 7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid is 68077-26-9.

What are the molecular formula and molecular weight of 7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid?

7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid has molecular formula C12H9ClFNO3 and molecular weight 269.656 g/mol.

What are the upstream and downstream products of 7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid?

For 7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid, Upstream Products: Ethyl 7-chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate, ethyl 7-chloro-6-fluoro-4-hydroxyquinoline-3-carboxylate, 3-Chloro-4-fluoroaniline; Downstream Products: Pefloxacin, Norfloxacin, 7-(4-acetylpiperazin-1-yl)-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "7-Chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (CAS 68077-26-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3744-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.