Overview
Lupenyl acetate is a triterpenoid ester derived from lupenol, a naturally occurring compound found in plants such as lupins and birch bark. It is valued in industrial and research settings for its bioactive properties, including anti-inflammatory and antioxidant effects. The compound is synthesized through the acetylation of lupenol, resulting in a stable ester form with enhanced solubility in organic solvents. In B2B markets, lupenyl acetate is primarily supplied as a high-purity powder for use in pharmaceuticals, cosmetics, and biochemical research. Its applications range from active pharmaceutical ingredients (APIs) to skincare formulations, where it aids in reducing oxidative stress and improving skin barrier function.
Physical and Chemical Properties
Lupenyl acetate appears as a white to off-white crystalline powder with a melting point of approximately 180-185°C. It is soluble in organic solvents like ethanol and chloroform but insoluble in water due to its non-polar structure. The compound’s molecular weight is 468.76 g/mol, and its stability under normal storage conditions makes it suitable for long-term use. Key chemical properties include its ester linkage, which can be hydrolyzed under acidic or alkaline conditions to release lupenol. This reactivity is leveraged in controlled drug delivery systems. The compound’s UV absorption characteristics (λmax ~210 nm) are also utilized in analytical quantification methods such as HPLC.
Main Applications
In pharmaceuticals, lupenyl acetate is studied for its potential to modulate inflammatory pathways, making it a candidate for treating conditions like arthritis and dermatitis. It is also incorporated into topical creams and serums for its skin-conditioning and anti-aging effects. The cosmetics industry utilizes lupenyl acetate as a natural alternative to synthetic antioxidants, often in formulations targeting sensitive or mature skin. Additionally, it serves as a reference standard in biochemical research to investigate triterpenoid metabolism and signaling pathways.
Safety and Storage
Lupenyl acetate is generally considered low-risk but requires standard laboratory precautions. Avoid inhalation of dust and direct skin contact by using gloves and goggles. In case of exposure, rinse thoroughly with water and seek medical advice if irritation persists. Storage should be in tightly sealed containers under cool (below 25°C), dry, and dark conditions to prevent degradation. Bulk quantities may require nitrogen flushing to minimize oxidation. Shelf life typically exceeds two years when stored properly.
B2B Procurement Guide
When procuring lupenyl acetate, prioritize suppliers with certifications such as GMP or ISO 9001 to ensure quality compliance. Request certificates of analysis (CoA) detailing purity (≥95% by HPLC), residual solvents, and heavy metal content. Pricing varies based on purity and order volume, with bulk purchases (1 kg+) often discounted. Consider lead times (commonly 2-4 weeks) and logistics, as the compound may require temperature-controlled shipping. Sample testing is recommended to confirm batch-to-batch consistency.
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