Description

(+)-Leucocyanidin CAS NO 69256-15-1 is a specific stereoisomer of the natural flavonoid compound leucocyanidin, belonging to the class of flavan-3,4-diols. This compound is of significant interest for its role as a key intermediate in the biosynthesis of anthocyanins and proanthocyanidins (condensed tannins), which are responsible for pigmentation and plant defense mechanisms. It serves as a crucial reference standard and starting material for research and development in the nutraceutical, cosmetic, and pharmaceutical industries, where its antioxidant and bioactive properties are explored.

Application

• Pharmaceutical Research: Used as a high-purity reference standard in analytical method development and quality control for herbal extracts and botanical drug products.
• Nutraceutical Development: Serves as a key intermediate or marker compound in the formulation of standardized antioxidant supplements and functional food ingredients.
• Cosmetic Science: Investigated for its potential antioxidant and skin-protective benefits in advanced cosmetic and personal care formulations.
• Biochemical Studies: Employed as a precursor in enzymatic and chemical studies of flavonoid biosynthesis pathways and polyphenol chemistry.
• Plant & Agricultural Research: Used to study plant physiology, stress responses, and the genetic regulation of pigment and tannin production.
• Material Science: Explored as a natural polyphenol source for developing bio-based polymers, resins, or functional coatings.

Basic Information

Product Name	(+)-Leucocyanidin
CAS No.	69256-15-1
Molecular Formula	C15H14O7
Molecular Weight	306.27 g/mol
Synonyms	(+)-Leucocyanidol; (2R,3S,4S)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol; Leucocyanidol; 3,4-Dihydroxyflavan-3,4-diol; Cyanidol; Flavan-3,4-diol; Leucocyanidin; trans-Leucocyanidin
EINECS	Contact for details

Quality Control

Our (+)-Leucocyanidin is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, MS), to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing batch-specific results are available upon request. We adhere to cGMP principles where applicable to ensure traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C under an inert atmosphere (e.g., nitrogen or argon) to minimize oxidation. The container should be kept in a cool, dry, and well-ventilated area, away from incompatible materials. For long-term storage, consider freezing at -20°C.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Specific Rotation	Contact for details
Water Content (KF)	≤ 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.