Description

1H-2-Benzopyran CAS NO 253-35-0 is a fundamental heterocyclic organic compound belonging to the benzopyran class, serving as a key structural motif and synthetic intermediate. Its significance lies in its role as a versatile building block for the development of more complex molecules, particularly in fine chemical and pharmaceutical research. This compound is essential for R&D chemists and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking to develop novel active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various pharmacologically active compounds and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used as a building block for developing new pesticides, herbicides, and plant growth regulators.
• Organic Synthesis: Serves as a versatile scaffold and starting material for synthesizing complex heterocyclic compounds in academic and industrial laboratories.
• Material Science: Investigated for the development of organic electronic materials, dyes, and photochromic compounds.
• Flavor & Fragrance Industry: Potential intermediate for the synthesis of certain aroma chemicals and fragrance components.

Basic Information

Product Name	1H-2-Benzopyran
CAS No.	253-35-0
Molecular Formula	C9H8O
Molecular Weight	132.16 g/mol
Synonyms	2H-1-Benzopyran; Isochromene; 1,2-Benzopyran; 3,4-Benzopyran; 2H-Chromene; Benzo[b]pyran; 1H-2-Benzopyran-1-one (tautomer reference); Contact for details on additional trade names.
EINECS	205-967-8

Quality Control

Our 1H-2-Benzopyran is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specific results for key parameters is provided with every shipment. We support compliance with global regulatory frameworks, including REACH, and can tailor quality specifications to meet specific customer or research-grade requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque or amber glass, or stored in dark conditions.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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