3,7-Dimethyl-7-hydroxyoctanal CAS 107-75-5 C10H20O2
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Hydroxycitronellal is an extremely important synthetic fragrance, a colorless to light yellow transparent liquid. It has the aroma of lily and lily of the valley, with a fresh citrus and sweet woody background. Because of its elegant fragrance, good diffusion and strong compatibility, it has become a cornerstone fragrance for high-end perfumes and daily chemical products.
107-75-5
C10H20O2
172.26
203-518-7
Hydroxycitronellal, chemically named 7-Hydroxy-3,7-dimethyloctanal, is an extremely important synthetic fragrance with its delicate and soft lily of the valley-lily fragrance as its core feature, and has both fresh citrus and sweet woody background. Because of its elegant fragrance, good diffusion and strong compatibility, it has become the cornerstone fragrance of high-end perfumes and daily chemical products.
1. Perfumes and high-end fragrances
Core applications
Iconic floral notes:
Hydroxycitronellal is one of the most successful synthetic fragrances that simulates the natural lily of the valley aroma, accounting for more than 60% of modern floral fragrance formulas (such as classic perfumes such as Chanel No.5 and Dior J'adore).
Triple role of perfume:
Main fragrance: Used alone, it can build the fragrance skeleton of white flowers such as lily of the valley, magnolia, and lily.
Blending agent: Soften the sharpness of rose and jasmine and enhance the roundness of the fragrance.
Fixative: Combined with woody fragrance (such as cedar) and musk, it can extend the fragrance retention time (up to 8-12 hours).
Classic compatibility combination
Compatible fragrances Synergistic effect Application fragrance case
Cyclopentasiloxane Enhances the ethereal feeling and freshness of lily of the valley Spring floral fragrance
Ylang-ylang Enhances the richness and exotic feeling of floral fragrance Oriental floral fragrance
New jasmine Strengthens the powdery sweetness and soapy feeling Soapy clean fragrance
2. Daily chemicals and personal care
Functional application
Care products:
Shampoo/shower gel: Add 0.1-0.5% to provide a long-lasting fresh feeling after washing (covering the chemical smell of sulfate surfactants).
Technical advantages: Acid and alkali resistance (stable at pH 3-10), not easy to hydrolyze in soap base.
Skin care products:
Cream/lotion: Concentration ≤0.05% gives a light floral fragrance while inhibiting oil oxidation and rancidity (weak antioxidant).
Household cleaners:
Add 0.01-0.1% to glass cleaners and softeners to neutralize the irritating smell of ammonia.
IFRA strictly restricts use (49th edition standard):
Leave-on skin care products 0.5% Avoid skin sensitization (EC3 value = 2.5%)
Rinse-off products 2.0% Short-term contact reduces risk
Children's products Prohibited High transdermal absorption rate
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