Description

Oenothein B CAS NO 104987-36-2 is a bioactive macrocyclic ellagitannin, a high-value phytochemical extracted from plants of the Onagraceae family. This compound is of significant commercial interest due to its potent antioxidant, anti-inflammatory, and enzyme-inhibitory properties, which form the basis for its utility in advanced research and product development. It is primarily sought by manufacturers and research institutions in the nutraceutical, cosmeceutical, and pharmaceutical industries for formulating high-end health supplements, skincare products, and as a reference standard for analytical studies.

Application

• Nutraceutical Formulations: Key ingredient in dietary supplements targeting oxidative stress and inflammation.
• Cosmeceutical & Skincare: Incorporated into anti-aging, brightening, and protective serums and creams for its antioxidant and collagenase-inhibiting effects.
• Pharmaceutical Research: Serves as a reference standard and active pharmaceutical ingredient (API) intermediate in drug discovery, particularly for metabolic and inflammatory conditions.
• Functional Food & Beverages: Used to fortify health drinks and foods with enhanced bioactive profiles.
• Analytical & Quality Control: Employed as a high-purity certified reference material (CRM) in HPLC and LC-MS analysis for method development and validation.
• Biochemical Research: Utilized in in-vitro and in-vivo studies to investigate mechanisms related to enzyme inhibition, cell signaling, and metabolic pathways.

Basic Information

Product Name	Oenothein B
CAS No.	104987-36-2
Molecular Formula	C₃₄H₂₄O₂₂
Molecular Weight	784.54 g/mol
Synonyms	Oenothein B; Oenothein-B; 2,3-(S)-Hexahydroxydiphenoyl-D-glucose dimer; Casuarictin tetramer; 104987-36-2; Ellagitannin Oenothein B; Onagraceae ellagitannin
EINECS	Contact for details

Quality Control

Our Oenothein B is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic techniques, including HPLC and LC-MS, to confirm identity and quantify potency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as specified on the label or COA. This product is easily oxidized (store under inert atmosphere) and light-sensitive (store away from light). For long-term stability, consider storage under an inert gas such as argon or nitrogen.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Total Aerobic Microbial Count	≤ 1000 CFU/g
Total Yeast & Mold Count	≤ 100 CFU/g

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