Description

(+)-α-Phellandrene,(+)-(4S)-α-Phellandrene CAS NO 2243-33-6 is a high-purity, naturally occurring monoterpene characterized by its distinctive minty, citrus-like aroma. This compound is a valuable chiral building block and fragrance ingredient prized for its specific stereochemistry and organoleptic properties. It is essential for manufacturers in the flavor & fragrance, pharmaceutical, and fine chemical synthesis industries seeking a reliable, high-quality source of this optically active terpene.

Application

• Flavor & Fragrance Industry: A key component in the formulation of perfumes, colognes, soaps, and detergents, imparting fresh, minty, and citrus top notes.
• Aromatherapy & Essential Oils: Used as a constituent in therapeutic blends and natural essential oil reproductions for its aromatic qualities.
• Pharmaceutical Intermediates: Serves as a chiral starting material or intermediate in the synthesis of more complex bioactive molecules and active pharmaceutical ingredients (APIs).
• Fine Chemical Synthesis: Employed as a specialty reagent in organic synthesis, particularly in reactions leveraging its olefinic structure for cyclizations or as a precursor to other terpenoids.
• Food & Beverage Flavors: Used in trace amounts to create or enhance mint, herb, and citrus flavor profiles in food products and beverages.
• Research & Development: A standard for analytical testing, metabolic studies, and biological activity research in academic and industrial R&D laboratories.

Basic Information

Product Name	(+)-α-Phellandrene,(+)-(4S)-α-Phellandrene
CAS No.	2243-33-6
Molecular Formula	C10H16
Molecular Weight	136.23 g/mol
Synonyms	(+)-p-Mentha-1,5-diene; (4S)-1-Isopropyl-4-methyl-1,3-cyclohexadiene; (S)-α-Phellandrene; d-α-Phellandrene; (R)-5-Isopropyl-2-methyl-1,3-cyclohexadiene; p-Mentha-1,5-diene, (S)-; α-Phellandrene, (+)-; (+)-4-Isopropyl-1-methyl-1,5-cyclohexadiene
EINECS	218-819-5

Quality Control

Our (+)-α-Phellandrene is produced and tested under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity and impurity profile analysis, to ensure it meets the high standards required for flavor, fragrance, and synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, optical rotation, and chromatographic data is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at 2-8°C (refrigerated) or as specified on the label. This product is highly volatile and easily oxidized; for long-term storage, it is recommended to keep under an inert atmosphere (e.g., nitrogen) to maintain purity and prevent degradation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Chiral Purity ([α]D)	≥ 98.0% ee
Refractive Index (n20D)	1.470 - 1.480
Specific Rotation ([α]20D)	+50° to +55° (c=1, CHCl3)
Related Substances (GC)	Total impurities ≤ 5.0%

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