Description

Withanolides are a class of naturally occurring steroidal lactones, primarily sourced from plants in the *Withania* genus, known for their significant bioactive properties. These compounds are highly valued for their role in advanced research and development within the nutraceutical and pharmaceutical sectors. Key industries that utilize this material include manufacturers of dietary supplements, herbal extracts, and investigational new drugs seeking natural bioactive ingredients.

Application

• Nutraceutical Formulations: Used as a standardized bioactive marker in herbal supplements and adaptogenic products for wellness support.
• Pharmaceutical Research: Serves as a reference standard or active pharmaceutical ingredient (API) intermediate in preclinical studies for anti-inflammatory, neuroprotective, or anti-cancer applications.
• Cosmeceuticals: Incorporated into advanced skincare products for its potential antioxidant and skin-rejuvenating properties.
• Functional Food & Beverages: Employed as a value-added ingredient in health-focused food and drink products.
• Analytical Reference: Acts as a high-purity standard for quality control and assay development in analytical laboratories.
• Traditional Medicine Enhancement: Used to standardize and potentiate extracts for Ayurvedic and other traditional herbal preparations.

Basic Information

Product Name	Withanolides
CAS No.	63139-16-2
Molecular Formula	Typically C28H38O6 (for Withaferin A, a major constituent)
Molecular Weight	470.60 g/mol (for Withaferin A)
Synonyms	Withanolide; Withania Steroidal Lactones; Withaferin A (primary component); Ashwagandha Sterol Lactones; Somniferanolide; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our Withanolides are produced under strict quality management systems to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analysis using advanced techniques like HPLC to verify identity, potency, and the absence of specified impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to maintain stability and purity.

Specification

Item	Specification
Appearance	Off-white to pale yellow powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥ 90% Total Withanolides
Loss on Drying	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Microbiological Analysis	Meets standard guidelines

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