Description

.Beta.-D-Glucopyranoside, 2,2-Bis(3,4-Dihydroxyphenyl)-3,3,4,4-Tetrahydro-3,5,5,7,7-Pentahydroxy4,8-Bi-2H-1-Benzopyran-3-Yl, 2R-2.Alpha.,3.Alpha.,4.Beta.(2R*,3R*)- is a complex polyphenolic compound belonging to the class of condensed tannins or proanthocyanidins. This compound is valued for its potent antioxidant and free radical scavenging properties, which are central to its biological activity. It is primarily sought by research institutions and manufacturers in the nutraceutical, pharmaceutical, and cosmetic industries for developing advanced health supplements, therapeutic agents, and anti-aging formulations.

Application

• Pharmaceutical Research & Development: As a reference standard or active pharmaceutical ingredient (API) intermediate for studying cardiovascular health, neuroprotection, and anti-inflammatory therapies.
• Nutraceutical & Dietary Supplements: Key component in high-end antioxidant formulations, capsules, and functional foods aimed at promoting cellular health and combating oxidative stress.
• Cosmetics & Personal Care: Incorporated into serums, creams, and lotions for its skin-protective, anti-aging, and UV-radiation mitigating effects.
• Biochemical Research: Used in enzymatic studies, receptor binding assays, and as a tool compound to investigate pathways related to oxidative damage and polyphenol metabolism.
• Natural Product Standardization: Serves as a chromatographic standard for the quality control and standardization of botanical extracts rich in proanthocyanidins, such as those from grape seed, pine bark, or cocoa.

Basic Information

Product Name	.Beta.-D-Glucopyranoside, 2,2-Bis(3,4-Dihydroxyphenyl)-3,3,4,4-Tetrahydro-3,5,5,7,7-Pentahydroxy4,8-Bi-2H-1-Benzopyran-3-Yl, 2R-2.Alpha.,3.Alpha.,4.Beta.(2R*,3R*)-
CAS No.	96820-32-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Proanthocyanidin B2 3'-O-β-D-Glucopyranoside; Procyanidin B2 3'-O-glucoside; Procyanidin B2 3'-glucoside; 3'-O-β-D-Glucosyl-procyanidin B2; [2,2-Bis(3,4-dihydroxyphenyl)-3,3,4,4-tetrahydro-3,5,5,7,7-pentahydroxy-4,8-bi-2H-1-benzopyran-3-yl] 2R-2-alpha,3-alpha,4-β-(2R*,3R*)-β-D-glucopyranoside
EINECS	Contact for details

Quality Control

Our .Beta.-D-Glucopyranoside, 2,2-Bis(3,4-Dihydroxyphenyl)-3,3,4,4-Tetrahydro-3,5,5,7,7-Pentahydroxy4,8-Bi-2H-1-Benzopyran-3-Yl, 2R-2.Alpha.,3.Alpha.,4.Beta.(2R*,3R*)- is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for research and development purposes. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistency.

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. Keep the container tightly sealed to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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