Overview
7-Hydroxycitronellal is a monoterpenoid aldehyde derived from citronellal, primarily synthesized for its pleasant floral-citrus fragrance. It was first developed as a synthetic alternative to natural floral scents and has become a staple in modern perfumery. The compound is characterized by its stability and versatility, making it suitable for various cosmetic and household products. Its molecular structure allows it to blend well with other fragrance components, enhancing overall scent profiles.
Physical and Chemical Properties
As a liquid at room temperature, 7-hydroxycitronellal exhibits moderate viscosity and low volatility, which contributes to its lasting fragrance effect. Its molecular structure includes both hydroxyl and aldehyde functional groups, influencing its solubility and reactivity. The compound demonstrates good stability under normal storage conditions but may degrade when exposed to strong acids, bases, or oxidizing agents. Its density of approximately 0.925 g/cm³ makes it slightly lighter than water.
Main Applications
The primary use of 7-hydroxycitronellal is in the fragrance industry, where it serves as a key ingredient in lily-of-the-valley type perfumes. It's commonly found in fine fragrances, body care products, and household cleaners. In cosmetic formulations, it provides a fresh, clean note that complements floral bouquets. The compound is also used in scented candles, air fresheners, and laundry products due to its ability to mask odors effectively.
Safety and Storage
While generally considered safe for use in cosmetics, 7-hydroxycitronellal may cause skin irritation in sensitive individuals. Proper personal protective equipment, including gloves and eye protection, should be used when handling concentrated forms. Storage requires protection from direct sunlight and extreme temperatures. Containers should be tightly sealed to prevent oxidation and contamination. The material is flammable and should be kept away from ignition sources.
B2B Procurement Guide
When sourcing 7-hydroxycitronellal, buyers should prioritize suppliers with documented quality control processes and regulatory compliance. Key specifications to verify include purity level (typically 98-99.5%), color, and odor characteristics. Bulk purchases often offer cost advantages, but proper storage capacity must be available. Consider requesting samples for quality verification before large orders. Transportation should comply with chemical shipping regulations.
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