Aldehyde C-18 has a coconut scent and is used in cosmetic fragrances

Octadecaldehyde, with the chemical formula C₁₈H₃₆O, is an aldehyde compound. It is usually a colorless to pale yellow liquid with a waxy, fatty odor and a faint floral note.

Octadecaldehyde is a single organic compound whose molecular structure contains an aldehyde group (-CHO) and a heptadecanyl group (-C₁₇H₃₅). The presence of the aldehyde group gives it the typical chemical properties of aldehyde compounds.

• Fragrance Industry: Octadecaldehyde can be used as a fixative in perfume and cologne formulations, increasing the depth and longevity of the fragrance. It is commonly used in oriental and floral fragrances; for example, when combined with jasmine or gardenia, it enhances the texture and lasting power of the fragrance.

• Food Industry:Octadecaldehyde can be used as a food flavoring agent to enhance the flavor of food products. For instance, in some dairy products and baked goods, it imparts a creamy aroma and texture, improving the quality and appeal of the food.

• Cosmetics Industry: Due to its good biocompatibility and aroma properties, octadecaldehyde can be used in the formulation of cosmetic fragrances, such as creams, lotions, and shower gels, giving products a pleasant aroma and also providing some moisturizing effects.

• Chemical Synthesis: Octadecaldehyde can be used as an intermediate in organic synthesis to synthesize other complex organic compounds, such as surfactants and plastic additives, demonstrating its application value in chemical production.

1. Unique Aroma: Octadecaldehyde possesses a unique waxy, fatty aroma with a hint of floral notes, adding a distinctive fragrance layer to products and giving a warm, smooth, creamy feel.

2. Long-lasting Fragrance: Its fragrance has good longevity, maintaining its scent in products for an extended period, providing a lasting fragrance effect.

3. Good Biocompatibility: Octadecaldehyde has good biocompatibility, making it relatively safe for use in cosmetics and other fields, and unlikely to cause significant irritation or harm to the human body.