Description

2H-1-Benzopyran-2-One, 3,4-Dihydro-4-(4-Methylphenyl)- is a specialized organic compound belonging to the dihydrocoumarin class, serving as a key synthetic intermediate and building block in advanced chemical synthesis. Its value lies in its defined molecular architecture, which provides a versatile scaffold for constructing more complex molecules in pharmaceutical and fine chemical research. This product is essential for R&D chemists and process development scientists working in pharmaceutical development, agrochemical research, and the synthesis of functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Research: Used in the development and optimization of new pesticides, herbicides, and plant growth regulators, leveraging its benzopyran core structure.
• Fine Chemical Synthesis: Serves as a precursor for dyes, pigments, and optical brighteners due to its conjugated system and potential for functionalization.
• Material Science: Investigated as a monomer or additive in the production of specialized polymers and advanced organic materials with specific optical or electronic properties.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic chemistry, including studies on cyclization reactions and catalysis.

Basic Information

Product Name	2H-1-Benzopyran-2-One, 3,4-Dihydro-4-(4-Methylphenyl)-
CAS No.	108679-56-7
Molecular Formula	C₁₆H₁₄O₂
Molecular Weight	238.28 g/mol
Synonyms	4-(4-Methylphenyl)-3,4-dihydro-2H-1-benzopyran-2-one; 4-(p-Tolyl)-3,4-dihydrocoumarin; 3,4-Dihydro-4-(4-methylphenyl)-2H-1-benzopyran-2-one; 4-(4-Methylphenyl)chroman-2-one; Dihydrocoumarin, 4-(4-methylphenyl)-; 108679-56-7; 4-(p-Methylphenyl)-3,4-dihydrocoumarin
EINECS	Contact for details

Quality Control

Our 2H-1-Benzopyran-2-One, 3,4-Dihydro-4-(4-Methylphenyl)- is manufactured 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 research and development applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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 oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.