Description

(-)-Fisetinidol CAS NO 490-49-3 is a specific stereoisomer of the flavan-3-ol fisetinidol, belonging to the class of condensed tannin monomers. This compound is valued for its role as a fundamental building block in the study of proanthocyanidins and natural polyphenol chemistry. It serves as a critical reference standard and intermediate for researchers and manufacturers in the pharmaceutical, nutraceutical, and cosmetic industries, where precise chemical structure and purity are paramount for bioactivity studies and product development.

Application

• Pharmaceutical Reference Standard: Used for the identification, purity testing, and quantification of related compounds in drug discovery and natural product research.
• Nutraceutical Ingredient Research: Serves as a key intermediate or marker compound in the development of antioxidant and anti-inflammatory dietary supplements.
• Cosmetic Science: Investigated for its potential antioxidant properties in skincare formulations aimed at combating oxidative stress.
• Chemical Synthesis: Acts as a chiral starting material or intermediate for the synthesis of more complex polyphenols and flavan derivatives.
• Analytical Chemistry: Employed as a calibration standard in HPLC, LC-MS, and other chromatographic methods for analyzing tannins and flavonoids.
• Biochemical Research: Utilized in studies exploring the biological activities, metabolism, and structure-activity relationships of flavan-3-ols.

Basic Information

Product Name	(-)-Fisetinidol
CAS No.	490-49-3
Molecular Formula	C15H14O6
Molecular Weight	290.27 g/mol
Synonyms	(-)-Fisetinidol; (2R,3S)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol; Fisetinidol; 3',4',7-Trihydroxyflavan; (-)-3',4',7-Trihydroxyflavan; Leucofisetinidol; Flavan-3-ol, 3',4',7-trihydroxy-, (2R,3S)-
EINECS	207-705-1

Quality Control

Our (-)-Fisetinidol is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and chiral identity confirmation, to ensure it meets the high standards required for research and development. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, chiral purity, and related substances.

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 product is light-sensitive and easily oxidized; for long-term storage, consider under an inert atmosphere to maintain stability and purity.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥95.0%
Chiral Purity ([α]D / HPLC)	≥98.0% (-)-isomer
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%

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