Description

Isourolithin B is a bioactive metabolite of ellagitannins, belonging to the urolithin family of compounds. This high-purity reference standard is essential for research and development in the fields of nutraceuticals and pharmaceuticals, where precise chemical characterization is critical. It is primarily sought by analytical laboratories, R&D departments, and manufacturers focused on metabolic health, aging research, and the development of novel dietary supplements.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for the identification and quantification of urolithin metabolites in drug development and pharmacokinetic studies.
• Nutraceutical Research: Serves as a key ingredient in preclinical and clinical research investigating the effects of urolithins on cellular health, mitochondrial function, and longevity pathways.
• Analytical Chemistry: Employed as an analytical standard for method development and validation in HPLC, LC-MS, and other chromatographic techniques to ensure accurate measurement in complex matrices.
• Dietary Supplement Formulation: Used in the development and quality control of advanced dietary supplements targeting gut microbiome-derived metabolites.
• Academic & Institutional Research: A vital tool for universities and research institutes studying the biochemical mechanisms, bioavailability, and health benefits of polyphenol metabolites.

Basic Information

Product Name	Isourolithin B
CAS No.	855255-55-9
Molecular Formula	C13H8O4
Molecular Weight	228.20 g/mol
Synonyms	3,8-Dihydroxy-6H-dibenzo[b,d]pyran-6-one; Urolithin B; 3,8-Dihydroxyurolithin; 6H-Dibenzo[b,d]pyran-6-one, 3,8-dihydroxy-; Iso-urolithin B
EINECS	Contact for details

Quality Control

Every batch of Isourolithin B is manufactured and tested under strict quality management systems. We provide comprehensive analytical documentation to support your regulatory and research requirements. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for each lot upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) to prevent oxidation. Keep the container in a cool, dry, and well-ventilated area.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.2%
Heavy Metals	≤ 20 ppm

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