Description

2H-1-Benzopyran,3,4-Dihydro-4-Phenyl-(9Ci) is a specialized organic compound belonging to the chromane (dihydrobenzopyran) class, characterized by a phenyl substituent at the 4-position. This structural motif makes it a valuable intermediate and building block in advanced organic synthesis, particularly for creating complex heterocyclic systems. It is primarily sought after by pharmaceutical R&D and fine chemical industries for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of chromane and flavan derivatives with potential biological activity.
• Organic Synthesis Building Block: Used in constructing complex molecular architectures for agrochemicals and material science.
• Research & Development: Serves as a standard or starting material in medicinal chemistry and pharmacological studies.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, dyes, and fragrances.

Basic Information

Product Name	2H-1-Benzopyran,3,4-Dihydro-4-Phenyl-(9Ci)
CAS No.	21763-04-2
Molecular Formula	C₁₅H₁₄O
Molecular Weight	210.27 g/mol
Synonyms	4-Phenylchroman; 4-Phenyl-3,4-dihydro-2H-1-benzopyran; 4-Phenyl-3,4-dihydro-2H-chromene; 3,4-Dihydro-4-phenyl-2H-1-benzopyran; 4-Phenyl-2H-chromene; Flavan (Note: Flavan is the unsubstituted parent structure); 4-Phenylflavan (common name); 21763-04-2 (CAS Registry Number)
EINECS	Contact for details

Quality Control

Our 2H-1-Benzopyran,3,4-Dihydro-4-Phenyl-(9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (by HPLC), related substances, and physical characteristics is provided with every shipment to guarantee it meets your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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