Description

4-Hydroxy-6-Methoxyquinoline-3-Carboxylic Acid is a high-purity quinoline derivative serving as a critical advanced pharmaceutical intermediate. This compound matters for its role as a versatile building block in the synthesis of complex active pharmaceutical ingredients (APIs) and other fine chemicals. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty chemical research and development sectors seeking reliable, high-quality raw materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various quinoline-based drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and fungicides.
• Organic Synthesis Building Block: Employed in complex organic reactions to construct more elaborate molecular architectures in fine chemical production.
• Research & Development: Serves as a standard or starting material in academic and industrial laboratories for medicinal chemistry and material science projects.
• Dye and Pigment Intermediate: Potential use in the synthesis of specialized quinoline-derived colorants and functional materials.

Basic Information

Product Name	4-Hydroxy-6-Methoxyquinoline-3-Carboxylic Acid
CAS No.	28027-16-9
Molecular Formula	C₁₁H₉NO₄
Molecular Weight	219.19 g/mol
Synonyms	6-Methoxy-4-hydroxyquinoline-3-carboxylic acid; 3-Quinolinecarboxylic acid, 4-hydroxy-6-methoxy-; 4-Hydroxy-6-methoxy-3-quinolinecarboxylic acid; 4-Hydroxy-6-methoxyquinoline-3-carboxylate; 6-Methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid; 4-Hydroxy-6-methoxy-quinoline-3-carboxylic acid; 28027-16-9; 4-Hydroxy-6-methoxy-3-quinoline carboxylic acid
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-6-Methoxyquinoline-3-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 such as strong acids and organic solvents. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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