Ingredient Dictionary

TRIMETHYLCYCLOHEXANOL

3,3,5-trimethylcyclohexanol is a secondary alcohol that is cyclohexanol substituted by two methyl groups at the 3-position and one methyl group at the 5-position.

Definition

3,3,5-trimethylcyclohexanol is a secondary alcohol that is cyclohexanol substituted by two methyl groups at the 3-position and one methyl group at the 5-position. It exhibits inhibitory activity against HMG-CoA reductase ( EC 1.1.1.34/EC 1.1.1.88). It has a role as an EC 1.1.1.34/EC 1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitor. It is a member of cyclohexanols and a secondary alcohol.

Source: PubChem

US FDA substance register · UNII 08CL3G94GH · registered name 3,3,5-Trimethylcyclohexanol · mixture

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Names & identifiers

TRIMETHYLCYCLOHEXANOLINCICyclohexanol, 3,3,5-trimethyl-Synonym

CAS No.chemical registry number: 116-02-9
EC No.EU chemical inventory number: 204-122-7
DTXSIDUS EPA chemical ID: DTXSID9041815
DTXCIDUS EPA compound ID: DTXCID7021815

IUPAC: 3,3,5-Trimethylcyclohexan-1-ol
Molecular formula: C9H18O
Molecular weight: 142.242 g/mol

Measured properties

Melting/freezing point: 36 ℃
Initial boiling point and range: 198 ℃
Flash point: 88 ℃
Vapour pressure: 7.5 ㎜Hg (50 C)
Vapour density: 4.9 ()
Relative density: 0.878 (at 40C)
n-Octanol/water partition coefficient (Kow): 2.93 ((est.))
Auto-ignition temperature: 375 ℃
Molecular weight: 142.24

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: KOSHA safety data sheets (Korea)

What products actually use it for

What the 7 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Deodorizer2
Flavouring and nutrient2
Fragrance2
Intermediate1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

1 skin studies and 2 eye studies are on record.

Classed as low1

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 3 studies

Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to OECD Guideline 406 (Skin Sensitisation)
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Severe Irritation
eye irritation: in vivo · Screening · other guideline: see Principles of method if other than guideline according to