Description

(S)-2-(3,4-Dimethoxyphenyl)-3,4-Dihydro-2H-1-Benzopyran-5,7-Diol is a high-purity chiral flavan derivative, a key intermediate in advanced organic synthesis and pharmaceutical research. This compound matters for its role as a sophisticated building block in the development of novel active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily needed by research institutions, pharmaceutical R&D departments, and specialty chemical manufacturers focused on cardiovascular, neurological, and anti-inflammatory therapeutic areas.

Application

• Pharmaceutical Intermediate: A critical chiral precursor for the synthesis of novel drug candidates targeting specific biological pathways.
• Biochemical Research: Used as a reference standard or probe in enzymatic and receptor binding studies due to its specific stereochemistry.
• Asymmetric Synthesis: Serves as a key starting material or chiral auxiliary in complex, stereoselective organic reactions.
• Natural Product Analog Development: Used to create synthetic analogs of naturally occurring flavanoids for structure-activity relationship (SAR) studies.
• Fine Chemical Production: Employed in the multi-step synthesis of high-value, complex molecules for specialty applications.

Basic Information

Product Name	(S)-2-(3,4-Dimethoxyphenyl)-3,4-Dihydro-2H-1-Benzopyran-5,7-Diol
CAS No.	89289-92-9
Molecular Formula	C₁₇H₁₈O₅
Molecular Weight	302.32 g/mol
Synonyms	(S)-5,7-Dihydroxy-2-(3,4-dimethoxyphenyl)chroman; (S)-Taxifolin 3',4'-Dimethyl Ether; (2S)-2-(3,4-Dimethoxyphenyl)-3,4-dihydro-2H-1-benzopyran-5,7-diol; (S)-Dihydroquercetin Dimethyl Ether; (S)-Hesperetin Dehydro Analog; (S)-Flavan-5,7-diol, 2-(3,4-dimethoxyphenyl)-; (2S)-2-(3,4-Dimethoxyphenyl)-2,3-dihydro-5,7-dihydroxy-4H-1-benzopyran-4-one (tautomer); L-89289-92-9
EINECS	Contact for details

Quality Control

Our (S)-2-(3,4-Dimethoxyphenyl)-3,4-Dihydro-2H-1-Benzopyran-5,7-Diol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral HPLC for enantiomeric purity and identity confirmation by spectroscopic methods, to ensure compliance with research and development standards. Certificates of Analysis (COA) with detailed chromatographic data are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) to prevent oxidation and degradation. Keep the container in a cool, dry, and well-ventilated area, away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 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.