Description

p-Mentha-1(7),3-Diene CAS NO 99-84-3 is a high-purity terpene hydrocarbon, specifically a diene isomer of limonene, valued for its unique aromatic profile and chemical reactivity. This compound serves as a versatile intermediate and fragrance ingredient, offering distinct organoleptic properties compared to its more common isomers. It is essential for manufacturers in the flavor and fragrance, agrochemical, and specialty chemical synthesis industries seeking specific terpene-based building blocks.

Application

• Fragrance & Flavor Ingredient: Used as a key component in creating complex citrus, pine, and herbal notes for perfumes, cosmetics, and food flavorings.
• Chemical Synthesis Intermediate: Serves as a starting material for the synthesis of more complex aroma chemicals, pharmaceuticals, and fine chemicals due to its reactive diene structure.
• Agrochemical Formulations: Employed as a solvent or co-formulant in pesticides and herbicides, leveraging its hydrophobic properties.
• Industrial Solvent & Cleaner: Acts as a biodegradable and effective solvent in industrial cleaning applications and degreasing formulations.
• Research & Development: Utilized in academic and industrial R&D for studying terpene chemistry, polymerization, and catalytic reactions.

Basic Information

Product Name	p-Mentha-1(7),3-Diene
CAS No.	99-84-3
Molecular Formula	C10H16
Molecular Weight	136.23 g/mol
Synonyms	1,3-p-Menthadiene; α-Terpinene; 1-Methyl-4-isopropyl-1,3-cyclohexadiene; 4-Isopropyl-1-methyl-1,3-cyclohexadiene; 1-Methyl-4-(1-methylethyl)-1,3-cyclohexadiene; p-Mentha-1,3-diene; Terpilene
EINECS	202-795-1

Quality Control

Our p-Mentha-1(7),3-Diene is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing including Gas Chromatography (GC) for purity and isomer profile, and spectroscopic identification (IR, NMR) to ensure chemical identity and consistency. We provide Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality commitment aligns with industry standards for fragrance and technical grade materials.

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 easily oxidized; for long-term storage, consider filling the headspace with an inert gas such as nitrogen or argon to maintain stability and prevent degradation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Refractive Index (20°C)	1.475 - 1.485
Specific Gravity (20/20°C)	0.835 - 0.845
Related Isomers (GC)	Reported on COA

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