Description

2(3H)-Benzofuranone, 4-Hydroxy-3-Methyl- is a versatile organic intermediate with the CAS registry number 21872-07-1. This compound is valued for its functionalized benzofuranone structure, making it a key building block in the synthesis of more complex molecules. It is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with benzofuran-based scaffolds.
• Agrochemical Synthesis: Used in the research and production of herbicides, fungicides, and other crop protection agents.
• Fine Chemical Production: Acts as a building block for dyes, pigments, and other specialty organic compounds.
• Material Science Research: Investigated for use in the development of organic electronic materials and polymers.
• Academic & Industrial R&D: Employed in chemical research for method development and exploring novel synthetic pathways.

Basic Information

Product Name	2(3H)-Benzofuranone, 4-Hydroxy-3-Methyl-
CAS No.	21872-07-1
Molecular Formula	C9H8O3
Molecular Weight	164.16 g/mol
Synonyms	4-Hydroxy-3-methyl-2(3H)-benzofuranone; 3-Methyl-4-hydroxycoumarin (common misnomer, refers to tautomeric form); 4-Hydroxy-3-methyl-1-benzofuran-2(3H)-one; 3-Methyl-4-hydroxy-2-benzofuran-1(3H)-one; 4-Hydroxy-3-methylbenzofuran-2(3H)-one; 3-Methyl-4-hydroxy-2-coumaranone; 4-Hydroxy-3-methylcoumarin (tautomer)
EINECS	Contact for details

Quality Control

Our 2(3H)-Benzofuranone, 4-Hydroxy-3-Methyl- is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for purity, assay, and impurity profiles are provided and available upon request, supporting compliance in regulated applications.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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