Overview
Bergapten is a naturally occurring furanocoumarin found in bergamot oil and other citrus plants. It is known for its photosensitizing properties, making it valuable in medical and cosmetic applications. The compound is often extracted from plant sources or synthesized for industrial use. Its ability to absorb UV light and interact with DNA under UV exposure has led to its use in photochemotherapy for skin conditions like psoriasis and vitiligo. Bergapten is also a key ingredient in perfumery and cosmetics, where it contributes to the fragrance profile of bergamot oil. However, due to its potential to cause photosensitivity, its use in consumer products is regulated in many countries. Understanding its properties and applications is essential for industries that utilize this compound.
Physical and Chemical Properties
Bergapten is a white to off-white crystalline powder with a molecular weight of 216.19 g/mol. It has a melting point of 188-190°C and is soluble in organic solvents like ethanol, methanol, and acetone, but only slightly soluble in water. The compound exhibits strong UV absorption, which is central to its photosensitizing effects. Chemically, bergapten is a furanocoumarin derivative, characterized by a fused furan and coumarin ring structure. This configuration allows it to intercalate into DNA and form photoadducts upon UV exposure, leading to its therapeutic and cosmetic applications. Its stability under normal storage conditions makes it suitable for long-term use in formulated products.
Main Applications
Bergapten is primarily used in photochemotherapy for treating skin disorders such as psoriasis and vitiligo. When combined with UV light exposure, it helps slow down excessive skin cell growth or repigment depigmented areas. This application is carefully controlled due to the risk of photosensitivity reactions. In cosmetics and perfumery, bergapten is valued for its role in bergamot oil, contributing to its distinctive citrusy aroma. However, its concentration in consumer products is often limited to avoid adverse effects. Additionally, bergapten is studied for potential anticancer properties, though research is still in early stages. Its versatility makes it a compound of interest across multiple industries.
Safety and Storage
Bergapten requires careful handling due to its photosensitizing properties. Direct exposure to sunlight after contact can cause severe skin reactions, including burns or hyperpigmentation. Protective equipment, such as gloves and UV-blocking eyewear, is recommended when working with this compound. Storage should be in a cool, dry place, away from light and moisture to maintain stability. Containers must be tightly sealed to prevent contamination or degradation. Regulatory guidelines, such as those from the FDA and EU, often restrict bergapten levels in consumer products, so compliance with local regulations is critical for safe usage.
B2B Procurement Guide
When procuring bergapten, prioritize suppliers who provide detailed certificates of analysis (CoA) to verify purity and composition. Regulatory compliance, such as REACH or FDA approval, is essential for ensuring product safety and legality. Bulk purchases may offer cost savings, but quality should never be compromised. Consider the intended application when selecting bergapten, as purity requirements vary. For pharmaceutical use, higher purity grades (≥98%) are typically necessary, while cosmetic applications may tolerate slightly lower grades. Establishing long-term relationships with reputable suppliers can ensure consistent quality and reliable supply chains.
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