Description

[S,(-)]-3,7-Dimethyl-7-Octenal is a high-purity chiral fragrance and flavor intermediate known for its powerful, fresh, and citrus-like odor profile. This compound is valued for its role in creating sophisticated, natural-smelling aroma compositions and as a key building block in fine chemical synthesis. It is primarily sought by manufacturers in the flavors and fragrances (F&F), cosmetics, and specialty chemical industries seeking to enhance product differentiation and quality.

Application

• Fragrance Formulation: A key ingredient in premium perfumes, colognes, and personal care products for imparting fresh, green, and citrus top notes.
• Flavor Enhancement: Used in the creation of complex flavor profiles for food and beverages, contributing to natural citrus and herbal nuances.
• Cosmetic Ingredients: Incorporated into lotions, soaps, and shampoos as a fragrance component.
• Chemical Synthesis: Serves as a valuable chiral intermediate or starting material in the synthesis of more complex aroma chemicals and pharmaceuticals.
• Household Products: Used in air fresheners, detergents, and cleaning agents to provide a pleasant and lasting scent.
• Aromatherapy & Diffuser Oils: A component in essential oil blends and diffuser formulations for its uplifting aromatic properties.

Basic Information

Product Name	[S,(-)]-3,7-Dimethyl-7-Octenal
CAS No.	86951-91-9
Molecular Formula	C10H18O
Molecular Weight	154.25 g/mol
Synonyms	(S)-(-)-3,7-Dimethyl-7-octenal; (S)-7-Octenal, 3,7-dimethyl-; (-)-3,7-Dimethyl-7-octenal; (S)-3,7-Dimethyloct-7-enal; L-3,7-Dimethyl-7-octenal; (S)-Floralozone; (S)-Dihydrocitronellal; (S)-7,11-Dimethyl-6,10-dodecadienal (related aldehyde); (S)-Citronellal (isomer)
EINECS	Contact for details

Quality Control

Our [S,(-)]-3,7-Dimethyl-7-Octenal is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by GC or HPLC, to ensure it meets the high standards required for fragrance and flavor applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chiral Purity ([α]D / GC)	≥ 98.0% (S)-enantiomer
Refractive Index (20°C)	1.445 - 1.455
Specific Gravity (20/20°C)	0.850 - 0.870

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.