Description

p-Mentha-2,8(10)-Diene is a naturally occurring monoterpene hydrocarbon, also known as phellandrene, with the CAS registry number 499-99-0. This compound is a key aromatic constituent and intermediate valued for its distinctive woody, peppery, and slightly minty olfactory profile. It is essential for manufacturers in the fragrance, flavor, and specialty chemical industries seeking to create complex, natural-smelling accords or to synthesize other valuable aroma chemicals.

Application

• Fragrance & Perfumery: A core building block for creating fresh, woody, and spicy top notes in fine fragrances, personal care products, and household cleaners.
• Flavoring Agent: Used to impart fresh, peppery, and herbaceous nuances in food and beverage flavor formulations.
• Aroma Chemical Synthesis: Serves as a crucial chiral intermediate and starting material for the synthesis of more complex fragrance molecules and terpenoids.
• Industrial & Functional Aromas: Employed in air fresheners, detergents, and other functional products to provide a clean, natural scent character.
• Research & Development: Used in academic and industrial R&D for studying terpene chemistry, natural product synthesis, and olfactory receptor interactions.

Basic Information

Product Name	p-Mentha-2,8(10)-Diene
CAS No.	499-99-0
Molecular Formula	C10H16
Molecular Weight	136.23 g/mol
Synonyms	α-Phellandrene; 2-Methyl-5-(1-methylethyl)-1,3-cyclohexadiene; p-Mentha-2,8-diene; 5-Isopropyl-2-methyl-1,3-cyclohexadiene; (+)-α-Phellandrene; (R)-α-Phellandrene; (R)-(+)-α-Phellandrene; 1,3-Cyclohexadiene, 2-methyl-5-(1-methylethyl)-, (R)-
EINECS	207-890-2

Quality Control

Our p-Mentha-2,8(10)-Diene is produced and handled under strict quality management protocols. Each batch is analyzed using advanced chromatographic and spectroscopic techniques (GC, GC-MS, IR) to ensure identity, purity, and olfactory consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, enantiomeric purity where applicable, and impurity profiles. Our quality commitment supports compliance with relevant industry standards for fragrance and flavor ingredients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at 15-25°C. This product is light-sensitive and highly volatile. For long-term storage, consider keeping under an inert atmosphere (e.g., nitrogen) to minimize oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Specific Rotation (20°C)	+45° to +55°
Refractive Index (20°C)	1.470 - 1.480
Relative Density (20°C)	0.835 - 0.845

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