Citral dimethyl acetal (CAS 7549-37-3) is a key fragrance and flavor intermediate widely used in the perfume, cosmetic, and food industries. As a stable acetal derivative of citral, it retains the fresh lemon-citrus aroma while offering better chemical stability than citral, resisting oxidation and degradation in alkaline or high-temperature formulations. It is a primary raw material for blending lemon, lime, and citrus fragrances in soaps, detergents, body lotions, and air fresheners, enhancing product scent persistence. In the food industry, it acts as a flavoring agent for beverages, candies, baked goods, and condiments, providing natural citrus notes. It also serves as a critical synthetic intermediate for manufacturing vitamins (e.g., vitamin A), carotenoids, and other terpenoid-based compounds via hydrolysis or condensation reactions. Additionally, it is used in organic synthesis for protecting aldehyde groups and as a solvent in specialty chemical formulations.

Citral dimethyl acetal is a combustible liquid (GHS07; H227, H317) with low acute toxicity but mild allergenic potential. Inhalation of vapor/mist may cause mild respiratory irritation (cough, sore throat); use local exhaust and respiratory protection in enclosed spaces. Skin contact may trigger allergic reactions (redness, itching, rash) in sensitive individuals; wear nitrile gloves and wash skin with soap/water after handling. Eye contact can cause irritation (stinging, redness); rinse eyes with running water for ≥15 minutes and seek medical help if symptoms persist. Ingestion may cause mild gastrointestinal discomfort (nausea, diarrhea); do not induce vomiting and consult a physician if large amounts are swallowed. No significant carcinogenicity or reproductive toxicity is reported. Store away from heat, sparks, open flames, and strong oxidants. Dispose of waste per local hazardous waste regulations; avoid environmental release.