Undecylenic aldehyde is an important aliphatic unsaturated aldehyde with unique fragrance and chemical activity, widely used in daily flavor, food spice and organic synthesis industries. It owns elegant fresh floral and fruity aroma, which is commonly applied in blending floral fragrance, citrus fragrance and daily cosmetic essence, and added into soap, perfume, skin care products and air fresheners to adjust fragrance tone. In food industry, it can be used as flavor enhancer for beverage, candy and baked food. Chemically, it contains double bond and aldehyde group, capable of oxidation, reduction, addition and condensation reactions, used to synthesize undecylenic acid, spice derivatives and pharmaceutical intermediates. It also serves as raw material for preparing antibacterial additives and plant growth regulators. With mild fragrance and stable physical property, it is a mainstream spice raw material with large market demand in flavor and fragrance industry.

This chemical belongs to mild irritant and combustible liquid. Inhalation of its vapor may cause throat dryness, dizziness and respiratory discomfort, so keep working place well ventilated during operation. Skin contact may lead to slight redness and itching irritation, wear ordinary protective gloves and wash skin with soap water after contact. Eye contact will cause stinging and tearing symptom, flush eyes with plenty of clean water for more than fifteen minutes once exposure occurs. Accidental ingestion will cause nausea and stomach discomfort, drink warm water to relieve symptoms and seek medical advice if feeling unwell. It is combustible liquid, keep far away from open fire, high temperature and heat source to prevent burning risk. Avoid long-term exposure to air to prevent oxidative deterioration. Store separately from oxidants and edible raw materials. Waste liquid should be treated following chemical waste rules to avoid unnecessary safety hazards and environmental influence.