Description

(S)-(-)-Limonene is the pure enantiomeric form of the naturally occurring terpene, characterized by its distinctively fresh, citrus-like aroma. This high-purity chiral building block is essential for applications requiring specific stereochemistry, offering superior olfactory and flavoring properties compared to the racemic mixture. It is a critical raw material for the fragrance, flavor, and pharmaceutical industries, where its defined stereochemistry and consistent quality are paramount for product performance and regulatory compliance.

Application

• Fragrance & Flavor Industry: A key chiral ingredient in premium perfumes, cosmetics, and fine fragrances for its fresh, natural citrus scent. Also used as a flavoring agent in food and beverages.
• Pharmaceutical Intermediates: Serves as a chiral starting material or intermediate in the synthesis of active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemicals: Utilized in the formulation of eco-friendly pesticides and insecticides, leveraging its natural origin and specific bioactivity.
• Industrial Cleaning & Degreasing: An effective, biodegradable solvent in industrial cleaners, degreasers, and hand cleansers, prized as a replacement for harsher petrochemical solvents.
• Aromatherapy & Wellness Products: A primary component in essential oil blends, diffusers, and therapeutic products for its purported calming and uplifting properties.
• Chemical Synthesis: Acts as a versatile, renewable feedstock for the synthesis of other valuable terpenes, resins, and polymers.

Basic Information

Product Name	(S)-(-)-Limonene
CAS No.	5989-54-8
Molecular Formula	C10H16
Molecular Weight	136.23 g/mol
Synonyms	(S)-(-)-Limonene; (S)-p-Mentha-1,8-diene; L-Limonene; (-)-Limonene; (4S)-1-Methyl-4-(1-methylethenyl)cyclohexene; (S)-1-Methyl-4-(1-methylethenyl)cyclohexene; Citrus Terpene; d-Limonene (obsolete, incorrect for this enantiomer); (S)-1,8-p-Menthadiene
EINECS	227-813-5

Quality Control

Our (S)-(-)-Limonene is produced and tested under a strict quality management system. Each batch undergoes rigorous analytical testing, including chiral purity (enantiomeric excess) and chemical purity determination by GC and/or HPLC, to ensure it meets exacting specifications for high-value applications. Certificates of Analysis (COA) detailing specific batch results are provided and can be tailored to meet relevant standards such as FCC, USP, or ISO, depending on the grade.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile nature, ensure containers are properly sealed when not in use. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Odor	Characteristic fresh citrus
Identification (IR)	Conforms to standard
Assay (GC)	≥ 95.0%
Enantiomeric Purity (Chiral GC)	≥ 98.0% (S)-enantiomer
Refractive Index (20°C)	1.470 - 1.474
Specific Rotation (20°C)	-96° to -104°
Relative Density (20°C)	0.838 - 0.843

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