Description

Isorhamnetin is a naturally occurring O-methylated flavonol, a key bioactive metabolite derived from plants like ginkgo biloba and sea buckthorn. This compound is valued for its potent antioxidant and anti-inflammatory properties, making it a critical ingredient for advanced research and product development. It serves as a high-purity reference standard and active ingredient for the pharmaceutical, nutraceutical, and cosmeceutical industries, where consistent quality and reliable supply are paramount.

Application

• Pharmaceutical Research & Development: Used as a reference standard in analytical methods (HPLC, LC-MS) and as a lead compound for developing new therapeutic agents targeting oxidative stress and inflammation.
• Nutraceutical Formulations: Incorporated into dietary supplements and functional foods for its antioxidant benefits, supporting cardiovascular and metabolic health.
• Cosmetic & Personal Care: Acts as a key active in anti-aging, skin-brightening, and protective skincare products due to its ability to neutralize free radicals and reduce UV-induced damage.
• Biochemical & Life Science Research: Employed in cell culture and in vitro studies to investigate mechanisms of action related to apoptosis, cell signaling, and neuroprotection.
• Standardized Herbal Extracts: Serves as a marker compound for the quality control and standardization of botanical extracts, such as those from ginkgo biloba.

Basic Information

Product Name	Isorhamnetin
CAS No.	480-19-3
Molecular Formula	C₁₆H₁₂O₇
Molecular Weight	316.26 g/mol
Synonyms	3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-chromen-4-one; 3'-Methoxy-3,4',5,7-tetrahydroxyflavone; 3-Methylquercetin; Isorhamnetol; Quercetin 3'-methyl ether; 4H-1-Benzopyran-4-one, 3,5,7-trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-; 3,4',5,7-Tetrahydroxy-3'-methoxyflavone
EINECS	207-545-1

Quality Control

Our Isorhamnetin is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and related substance analysis, to meet the stringent requirements of research and production applications. A Certificate of Analysis (COA) detailing identity, purity, and specific test results is provided with every shipment.

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 hygroscopic nature, the container must be kept tightly sealed in a low-humidity environment to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥95.0%
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%
Heavy Metals (as Pb)	≤20 ppm
Solubility	Sparingly soluble in water; soluble in DMSO, ethanol

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