How is the identity of Tetrahydrolinalool CAS 78-69-3 verified for fragrance stability?

The substance identity of CAS 78-69-3 is confirmed through its refractive index (1.431–1.435) and purity analysis via gas chromatography (GC). For industrial stability, we specifically monitor the absence of unsaturated precursors, as the saturated nature of tetrahydrolinalool is what provides its intended resistance to oxidation and discoloration in alkaline soap bases.

Is this product suitable for use in high-pH detergent formulations?

Yes, Tetrahydrolinalool is an intended choice for high-pH environments like laundry detergents and bleach-containing cleaners. Unlike linalool, its chemical structure is fully saturated, preventing it from reacting or degrading in harsh chemical systems. It is commonly used as a raw material for building stable floral notes that must survive aggressive processing conditions.

Tetrahydrolinalool CAS 78-69-3

Tetrahydrolinalool is a clear, colorless liquid and a saturated linalool tetrahydride derivative, functioning as a highly stable 3,7-dimethyloctan-3-ol ingredient in complex fragrance compositions. This specialized tetrahydrolinalool alcohol, often utilized in technical formulations as tetrahydro-linalool, offers a woody-floral odor profile with significantly higher oxidative stability than its unsaturated counterparts. As a versatile THL fragrance component, it is typically applied in the formulation of soaps, detergents, and household cleaners where resistance to alkaline environments and long-term scent retention are required. We provide this aromatic intermediate with competitive factory pricing to facilitate cost-effective fragrance production, offering customized specifications regarding optical rotation and olfactory purity to meet global perfumery standards. Every shipment is strictly verified for quality and accompanied by essential documentation, including MSDS, TDS, COA, and is prepared for bulk supply to support international distribution chains.

CAS: 78-69-3
Synonyms: 3,7-Dimethyloctan-3-ol, Tetrahydro Linalool, Linalool tetrahydride, THL, 3,7-Dimethyl-3-octanol.
Einecs: 201-133-9
Molecular Formula: C10H22O
Grade: Fragrance Grade / Industrial Grade
Package: 170kg/drum or ISO tank

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Product Description

Technical Data

Property	Specification (Industrial Standard)
Appearance	Clear, colorless liquid
Purity (GC)	≥ 99.0%
Relative Density (25/25°C)	0.823 – 0.829
Refractive Index (20°C)	1.431 – 1.435
Acid Value (mg KOH/g)	≤ 1.0
Flash Point	77.0 ℃
Solubility	Soluble in 3 volumes of 60% alcohol

Applications

Functional Perfumery: Used as a floral-citrus scent base in laundry detergents, fabric softeners, and hard surface cleaners where chemical stability is paramount.
Personal Care Products: Incorporated into shampoos, soaps, and deodorants for its clean, linalool-like aroma without the risk of oxidation-induced sensitization.
Chemical Intermediates: Acts as a building block in the synthesis of complex esters and specialized industrial surfactants.
Cosmetic Raw Materials: Employed as a masking agent and fragrance enhancer in high-stability cosmetic formulations.

For a fresh citrus-lavender top note in fragrance composition, Dihydromyrcenol is a separate aroma chemical.

Storage & Safety

Storage: Store in a cool, dry, well-ventilated area away from heat and open flames. Tetrahydrolinalool should be kept in original airtight containers, preferably lined with epoxy or stainless steel, to maintain its olfactory purity and prevent contamination.
Safety & PPE: While less sensitizing than linalool, Tetrahydrolinalool can cause skin and eye irritation. Industrial personnel should wear safety goggles, chemical-resistant gloves (Nitrile), and protective clothing. Ensure adequate ventilation in processing areas. This material is combustible; avoid contact with strong oxidizing agents.+1

Quality Assurance

Our quality control system utilizes advanced Gas Chromatography (GC) with flame ionization detection to ensure that the hydrogenation process is 100% complete, eliminating any residual unsaturated linalool. Every batch is subjected to rigorous Olfactory Evaluation by trained chemists to ensure the scent profile remains consistent with industrial standards. Additionally, Refractive Index and Specific Gravity measurements are recorded for every COA to guarantee physical-chemical identity.

FAQ - Technical & Supply Chain

Q:
How is the identity of Tetrahydrolinalool CAS 78-69-3 verified for fragrance stability?

A: The substance identity of CAS 78-69-3 is confirmed through its refractive index (1.431–1.435) and purity analysis via gas chromatography (GC). For industrial stability, we specifically monitor the absence of unsaturated precursors, as the saturated nature of tetrahydrolinalool is what provides its intended resistance to oxidation and discoloration in alkaline soap bases.
Q:
Is this product suitable for use in high-pH detergent formulations?

A: Yes, Tetrahydrolinalool is an intended choice for high-pH environments like laundry detergents and bleach-containing cleaners. Unlike linalool, its chemical structure is fully saturated, preventing it from reacting or degrading in harsh chemical systems. It is commonly used as a raw material for building stable floral notes that must survive aggressive processing conditions.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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