Description

1,2-Benzenedicarboxylic Acid, Mono(2-(3,4-Dihydroxyphenyl)-3,4-Dihydro -5,7-Dihydroxy-2H-1-Benzopyran-3-Yl) Ester, (2R-Trans)- is a complex ester derivative of phthalic acid and a dihydroflavonol, representing a high-value specialty chemical with significant biological activity. This compound matters for its role as a key intermediate in the synthesis of advanced pharmaceutical actives and nutraceutical ingredients, particularly those targeting oxidative stress. Industries requiring high-purity, structurally defined bioactive molecules, such as pharmaceutical R&D, advanced nutraceutical formulation, and reference standard production, are the primary users of this material.

Application

• Pharmaceutical Intermediate: Critical building block for the synthesis of novel therapeutic agents with antioxidant and cardioprotective properties.
• Nutraceutical Ingredient Synthesis: Used in the production of high-end dietary supplements targeting cellular health and anti-aging.
• Biochemical Research: Serves as a reference standard and probe compound in studies of flavonoid metabolism and bioactivity.
• Cosmeceutical Actives: Incorporated into advanced skincare formulations for its potential antioxidant and skin-protecting effects.
• Chemical Reference Material: Supplied to analytical laboratories and regulatory bodies for method development and quality control.

Basic Information

Product Name	1,2-Benzenedicarboxylic Acid, Mono(2-(3,4-Dihydroxyphenyl)-3,4-Dihydro -5,7-Dihydroxy-2H-1-Benzopyran-3-Yl) Ester, (2R-Trans)-
CAS No.	71634-88-3
Molecular Formula	C24H18O9
Molecular Weight	450.39 g/mol
Synonyms	Phthalic Acid Mono(2-(3,4-Dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl) Ester; (2R,3R)-Dihydroquercetin 3'-O-monophthalate; Taxifolin 3'-O-phthalate; (2R,3R)-2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-3-yl 2-carboxybenzoate; 3'-O-Phthaloyltaxifolin; Flavonoid-phthalate conjugate; Dihydroquercetin phthalic acid ester
EINECS	Contact for details

Quality Control

Our 1,2-Benzenedicarboxylic Acid, Mono(2-(3,4-Dihydroxyphenyl)-3,4-Dihydro -5,7-Dihydroxy-2H-1-Benzopyran-3-Yl) Ester, (2R-Trans)- is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and chiral integrity, and spectroscopic identification (IR, NMR), to ensure it meets exacting standards for research and synthesis. Certificates of Analysis (COA) detailing all 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). This material is light-sensitive and easily oxidized; for long-term storage, consider under an inert atmosphere such as nitrogen or argon to maintain stability and potency.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 95.0%
Chiral Purity	≥ 98.0% (2R,3R)
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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