Solvents
REACH
3,3,5-trimethylcyclohexanone
CAS Number
873-94-9
EC Number
212-855-9
Industries: Personal Care & Cosmetics
What is 3,3,5-trimethylcyclohexanone?
3,3,5-Trimethylcyclohexanone (CAS 873-94-9) is a cyclic ketone used in fragrance formulation and as a specialty solvent in personal care.
Where is 3,3,5-trimethylcyclohexanone used?
- Fragrance compounding: building block for woody and fresh accords in fine fragrance, detergents and fabric care
- Personal care: scent contributor and carrier solvent in rinse-off and leave-on products
- Dissolution of fragrance concentrates
- Resinous materials in cosmetic bases
- It is also evaluated as a flavoring agent under FEMA-recognized ingredient lists.
Good to know: Isophorone is its structurally related industrial counterpart. Fragrance-grade material is the primary commercial specification.
Commercial specifications
- Purity typically 98% or above for standard batches
- Standard drum and intermediate bulk container quantities
- Smaller pack sizes for laboratory evaluation and pilot-scale formulation work
Other Names (Synonyms)
3,3,5-Trimethylcyclohexan-1-one|Cyclohexanone, 3,3,5-trimethyl-|QXG9U7N202|J68.885A|RefChem:90755|3,3,5-Trimethyl-1-cyclohexanone|TMCHONE (3,3,5-TRIMETHYL CYCLOHEXANONE)
What are the physical properties of 3,3,5-trimethylcyclohexanone?
Melting Point 79-81 °C
Boiling Point 189 °C
Density 0.9676 g/cm³ @ Temp: 419.1 °C
Flash Point 150 °F
Appearance CLEAR COLOURLESS TO VERY SLIGHTLY YELLOW LIQUID
Color Colorless to Almost colorless
Form clear liquid
Water Solubility 13 g/L (20 ºC)
Vapor Pressure 60-133.36Pa at 20-30.99℃
Refractive Index n 20/D 1.445(lit.)
Log P 2.2-2.6 at 25℃
How is 3,3,5-trimethylcyclohexanone classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H319 Causes serious eye irritation
H332 Harmful if inhaled
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P317 Get emergency medical help.
Which trade and regulatory codes apply to 3,3,5-trimethylcyclohexanone?
HS Code 29142200
Storage Class 10 - Combustible liquids
WGK (Germany) 1