Description

2H-1-Benzopyran-2-One,7-Hydroxy-5-Methyl- CAS NO 7249-26-5 is a high-purity organic compound belonging to the coumarin derivative family, serving as a critical intermediate in advanced chemical synthesis. Its value lies in its specific molecular structure, which provides a versatile scaffold for developing active ingredients in pharmaceuticals and fine chemicals. This product is essential for R&D laboratories and production facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality building blocks.

Application

• Pharmaceutical Intermediate: Key starting material or intermediate in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those with coumarin-based structures.
• Agrochemical Synthesis: Used in the research and development of new generation pesticides and herbicides, leveraging its bioactive core.
• Fine Chemical Production: Serves as a precursor in the manufacture of dyes, fluorescent markers, and other specialty organic compounds.
• Academic & Industrial Research: A valuable reference standard and building block in organic chemistry research for studying structure-activity relationships.
• Cosmetic Ingredient Synthesis: Potential intermediate for UV absorbers or other functional additives, subject to final compound registration and approval.

Basic Information

Product Name	2H-1-Benzopyran-2-One,7-Hydroxy-5-Methyl- CAS NO 7249-26-5
CAS No.	7249-26-5
Molecular Formula	C10H8O3
Molecular Weight	176.17 g/mol
Synonyms	5-Methyl-7-hydroxycoumarin; 7-Hydroxy-5-methylcoumarin; 5-Methylumbelliferone; 5-Methyl-7-hydroxy-2H-chromen-2-one; 7-Hydroxy-5-methyl-2H-1-benzopyran-2-one; Hymecromone Impurity; β-Methylumbelliferone; 4-Methyl-7-hydroxycoumarin (archaic)
EINECS	230-659-3

Quality Control

Our 2H-1-Benzopyran-2-One,7-Hydroxy-5-Methyl- is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for synthesis and research. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, handling should be minimized under direct light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	188°C - 192°C
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.