Description

Rhamnetin CAS NO 90-19-7 is a naturally occurring flavonoid compound, specifically an O-methylated flavonol, recognized for its potent biological activity. This high-purity phytochemical serves as a critical reference standard and active ingredient for research and product development. It is essential for industries focused on nutraceuticals, pharmaceuticals, and advanced life science research, where precise molecular characterization and bioactivity are paramount.

Application

• Pharmaceutical Research & Development: Used as a reference standard and active pharmaceutical ingredient (API) intermediate for studying anti-inflammatory, antioxidant, and potential anticancer properties.
• Nutraceutical & Dietary Supplement Formulation: Incorporated as a key bioactive component in supplements targeting oxidative stress and metabolic health.
• Cosmeceutical Products: Employed in advanced skincare formulations for its antioxidant and potential skin-protective effects against environmental stressors.
• Biochemical & Life Science Research: Serves as a crucial tool in enzymatic studies, cell signaling pathway analysis, and in vitro bioassay development.
• Analytical Chemistry: Used as a certified reference material (CRM) for the calibration of instruments and validation of analytical methods like HPLC and LC-MS.
• Food Science & Functional Food Development: Investigated as a natural preservative and functional additive to enhance the health profile of food products.

Basic Information

Product Name	Rhamnetin
CAS No.	90-19-7
Molecular Formula	C16H12O7
Molecular Weight	316.26 g/mol
Synonyms	Rhamnetin; 2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4H-1-benzopyran-4-one; 3,5,3',4'-Tetrahydroxy-7-methoxyflavone; 7-Methylquercetin; 7-O-Methylquercetin; Quercetin 7-methyl ether; NSC 407303; CI 75670
EINECS	201-975-7

Quality Control

Our Rhamnetin is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and MS for identification, and residual solvent analysis, to ensure it meets stringent specifications for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability, consistency, and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥95.0%
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%
Heavy Metals (as Pb)	≤20 ppm
Residual Solvents	Complies with ICH guidelines

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