Description

4H-1-Benzopyran-4-One, 7-Methyl- CAS NO 5751-51-9 is a specific chromone derivative, a versatile heterocyclic scaffold of significant interest in advanced organic synthesis. This compound serves as a critical building block for the development of novel pharmacologically active molecules and functional materials. It is primarily sought after by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and specialty chemical sectors for its utility as a key synthetic intermediate.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting inflammation, cancer, and central nervous system disorders.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging the bioactivity of the chromone core structure.
• Organic Synthesis Building Block: Employed in complex organic reactions, including cyclizations and functional group transformations, to create diverse chemical libraries.
• Material Science Research: Investigated as a component in the design of organic semiconductors, fluorescent dyes, and photostable polymers.
• Academic & Contract Research: Serves as a standard or starting material in university laboratories and CROs (Contract Research Organizations) for methodological studies and discovery chemistry.

Basic Information

Product Name	4H-1-Benzopyran-4-One, 7-Methyl- CAS NO 5751-51-9
CAS No.	5751-51-9
Molecular Formula	C10H8O2
Molecular Weight	160.17 g/mol
Synonyms	7-Methylchromone; 7-Methyl-4H-chromen-4-one; 7-Methyl-1-benzopyran-4-one; 7-Methylcoumarin (Note: This is a common misnomer; coumarin is 2H-chromen-2-one); 7-Methyl-4H-1-benzopyran-4-one; 4H-1-Benzopyran-4-one, 7-methyl-; 7-Methyl-4-chromone
EINECS	227-268-7

Quality Control

Our production of 4H-1-Benzopyran-4-One, 7-Methyl- adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, GC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory 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 strong oxidizing agents and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Melting Point	102 - 106 °C
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.