Description

4H,8H-Benzo[1,2-B:3,4-B′]Dipyran-4-One, 2,3,9,10-Tetrahydro-5-Hydroxy-2-(4-Hydroxyphenyl)-8,8-Dimethyl-, (S)- is a high-purity, optically active chromanone derivative of significant interest in advanced organic synthesis. This compound matters for its role as a key chiral building block and intermediate in the development of complex molecules with specific biological activities. It is primarily needed by research and development teams in the pharmaceutical, agrochemical, and fine chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral precursor in the synthesis of potential therapeutic agents, particularly in cardiovascular and neurological research.
• Agrochemical Synthesis: Used in the development of novel, optically active pesticides and herbicides where specific stereochemistry is required for efficacy.
• Fine Chemical Building Block: Employed in advanced organic synthesis for constructing complex natural product analogs and specialty chemicals.
• Material Science Research: Investigated as a monomer or functional unit for creating novel polymers with specific optical or electronic properties.
• Biochemical Research: Utilized in studies exploring enzyme inhibition or as a ligand in asymmetric catalysis due to its defined stereocenter and functional groups.

Basic Information

Product Name	4H,8H-Benzo[1,2-B:3,4-B′]Dipyran-4-One, 2,3,9,10-Tetrahydro-5-Hydroxy-2-(4-Hydroxyphenyl)-8,8-Dimethyl-, (S)-
CAS No.	70897-14-2
Molecular Formula	C20H20O5
Molecular Weight	340.37 g/mol
Synonyms	(S)-5-Hydroxy-2-(4-hydroxyphenyl)-8,8-dimethyl-2,3,9,10-tetrahydro-4H,8H-benzo[1,2-b:3,4-b']dipyran-4-one; (S)-Equol 4'-Methyl Ether Chromanone; (S)-Dihydrodaidzein Chromanone Derivative; (S)-2,3-Dihydro-5-hydroxy-2-(4-hydroxyphenyl)-8,8-dimethyl-4H,8H-benzo[1,2-b:3,4-b']dipyran-4-one; (S)-8,8-Dimethyl-5-hydroxy-2-(4-hydroxyphenyl)-2,3,9,10-tetrahydro-4H,8H-benzo[1,2-b:3,4-b']dipyran-4-one; (S)-Chroman-4-one Derivative
EINECS	Contact for details

Quality Control

Our 4H,8H-Benzo[1,2-B:3,4-B′]Dipyran-4-One, 2,3,9,10-Tetrahydro-5-Hydroxy-2-(4-Hydroxyphenyl)-8,8-Dimethyl-, (S)- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity verification by HPLC, to ensure high chemical and optical purity suitable for demanding synthetic applications. Certificates of Analysis (COA) with detailed specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, long-term storage under an inert atmosphere (e.g., nitrogen or argon) is recommended for optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee (S-enantiomer)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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