Description

(-)-Citronellal is a high-purity, naturally derived monoterpenoid aldehyde with the CAS registry number 5949-05-3. This enantiomer is prized for its characteristic fresh, citrus-like aroma and serves as a critical chiral building block in fine chemical synthesis. It is an essential raw material for industries requiring high-quality, consistent fragrance components and specialized chemical intermediates.

Application

• Fragrance & Flavor Industry: A key ingredient in perfumery for citrus, floral, and herbal accords, and used as a flavoring agent in food and beverages.
• Pharmaceutical Intermediates: Serves as a chiral precursor in the synthesis of active pharmaceutical ingredients (APIs) and vitamins, such as (-)-menthol.
• Agrochemicals: Utilized in the production of insect repellents and other bioactive compounds.
• Household & Industrial Products: Incorporated into detergents, soaps, and cleaning agents for its fresh scent and antimicrobial properties.
• Aromatherapy & Personal Care: Used in essential oil blends, lotions, and cosmetics for its aromatic and potential therapeutic benefits.
• Chemical Synthesis: Acts as a versatile starting material for organic synthesis, including cyclization and reduction reactions to produce other valuable terpenoids.

Basic Information

Product Name	(-)-Citronellal
CAS No.	5949-05-3
Molecular Formula	C10H18O
Molecular Weight	154.25 g/mol
Synonyms	(-)-3,7-Dimethyl-6-octenal; (R)-3,7-Dimethyl-6-octenal; (R)-(-)-Citronellal; L-Citronellal; R-Citronellal; Rhodinal; 6-Octenal, 3,7-dimethyl-, (3R)-; Citronellal, (-)-
EINECS	227-713-5

Quality Control

Our (-)-Citronellal is manufactured under strict quality management systems. Each batch is tested to ensure high chemical and enantiomeric purity, meeting the stringent requirements of the fragrance, flavor, and pharmaceutical industries. 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, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep container tightly sealed when not in use to prevent evaporation and oxidation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Enantiomeric Purity (Chiral GC)	≥ 98.0% (R)-(-)-Isomer
Refractive Index (20°C)	1.446 - 1.452
Specific Gravity (20/20°C)	0.850 - 0.860
Optical Rotation (20°C)	-15° to -20°

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