Description

6,7-Diethoxy-4-Oxo-1,4-Dihydroquinoline-3-Carboxylic Acid is a high-purity quinoline derivative serving as a critical advanced pharmaceutical intermediate. This compound matters for its role as a key building block in the synthesis of complex active pharmaceutical ingredients (APIs), particularly in the development of quinolone-based therapeutics. Pharmaceutical R&D and manufacturing companies need this material for producing innovative drugs targeting bacterial infections and other therapeutic areas, where precise chemical structure and purity are paramount for efficacy and regulatory approval.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of quinolone and fluoroquinolone antibiotic APIs.
• Chemical Synthesis Building Block: Used in organic synthesis for constructing complex heterocyclic compounds in medicinal chemistry.
• Research & Development: Employed in academic and industrial labs for developing new pharmaceutical candidates and studying structure-activity relationships.
• Fine Chemical Production: Serves as a starting material for manufacturing specialized fine chemicals with specific biological activities.

Basic Information

Product Name	6,7-Diethoxy-4-Oxo-1,4-Dihydroquinoline-3-Carboxylic Acid
CAS No.	1698-96-0
Molecular Formula	C₁₄H₁₅NO₅
Molecular Weight	277.27 g/mol
Synonyms	6,7-Diethoxy-4-hydroxyquinoline-3-carboxylic acid; 3-Carboxy-6,7-diethoxy-4-hydroxyquinoline; 4-Hydroxy-6,7-diethoxyquinoline-3-carboxylic acid; 6,7-Diethoxy-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid; Ethyl Ofloxacin Intermediate; Ofloxacin Carboxylic Acid Derivative; 1,4-Dihydro-6,7-diethoxy-4-oxo-3-quinolinecarboxylic Acid; DEQCA
EINECS	Contact for details

Quality Control

Our 6,7-Diethoxy-4-Oxo-1,4-Dihydroquinoline-3-Carboxylic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical intermediate applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.