Description

4-Methyl-2-oxo-2H-chromene-3-carboxylic acid is a versatile and high-value organic intermediate belonging to the coumarin family. This compound matters as a critical building block for synthesizing more complex molecules in advanced research and industrial chemistry. It is primarily needed by manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly those with coumarin-based structures.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and plant growth regulators.
• Organic Synthesis & Research: Serves as a fundamental building block for constructing complex heterocyclic compounds in academic and industrial laboratories.
• Dye & Pigment Industry: Acts as an intermediate for producing certain fluorescent dyes and optical brighteners.
• Material Science: Investigated for use in the development of organic electronic materials and photoresponsive polymers.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical testing and quality control procedures.

Basic Information

Product Name	4-Methyl-2-oxo-2H-chromene-3-carboxylic acid
CAS No.	833-31-8
Molecular Formula	C12H8O4
Molecular Weight	216.19 g/mol
Synonyms	4-Methylumbelliferone-3-carboxylic acid; 3-Carboxy-4-methylumbelliferone; 4-Methyl-2-oxo-2H-1-benzopyran-3-carboxylic acid; 4-Methyl-2-oxochromene-3-carboxylic acid; 4-Methyl-2-oxo-2H-chromene-3-carboxylic acid; 3-Carboxy-4-methyl-7-hydroxycoumarin; 4-Methyl-7-hydroxycoumarin-3-carboxylic acid
EINECS	212-608-6

Quality Control

Our 4-Methyl-2-oxo-2H-chromene-3-carboxylic acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. 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 room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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