Ingredient Dictionary

3-OCTANOL

Octan-3-ol is a secondary alcohol that is octane substituted by a hydroxy group at position 3.

Definition

Octan-3-ol is a secondary alcohol that is octane substituted by a hydroxy group at position 3. It has a role as a pheromone, a flavouring agent, a plant metabolite and a human metabolite. It is a secondary alcohol and an octanol.

Source: PubChem

US FDA substance register · UNII 73DZ0U3U1E · registered name 3-Octanol · single chemical substance

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

3-OCTANOLINCI

CAS No.chemical registry number: 589-98-0
EC No.EU chemical inventory number: 209-667-4
DTXSIDUS EPA chemical ID: DTXSID10862252
DTXCIDUS EPA compound ID: DTXCID90811046

IUPAC: Octan-3-ol
Molecular formula: C8H18O
Molecular weight: 130.231 g/mol

Measured properties

Appearance: colourless liquid with a strong, oily-nutty, herbaceous odour · liquid
Boiling point: 173.00 to 175.00 °C. @ 760.00 mm Hg · 174 °C
Melting point: -45.00 °C. @ 760.00 mm Hg
Solubility: soluble in alcohol, ether, insoluble in water · (in ethanol)
Density: 0.817-0.824
Colour: colourless
Melting/freezing point: -45 ℃
Initial boiling point and range: 175~176 ℃
Flash point: 65 ℃
Vapour pressure: 0.256 (25 C)
Relative density: 0.82 g/cm3
Molecular weight: 130.23 (est.)

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: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 4 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.

Flavouring and nutrient2
Fragrance2

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 2 eye studies are on record.

Classed as highly irritating3Classed as low4

The studies disagree (the most common conclusion covers 43%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 5 studies

Not likely to be sensitizing
skin sensitisation · Screening · according to other guideline: Maximization test
Severe Irritation
skin irritation: in vivo · Screening · other guideline: as mentioned below according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: Annexes V and VI, part IID, of Directive 79/83 l/EEC Directive according to
Severe Irritation
eye irritation: in vivo · Screening · other guideline: as mentioned below according to
Category 6.4A (Category 2A)
Eye Irritation · Read Across