What is this ingredient?

미국 FDA 물질 등록 · UNII 8U34XJK0R0 · 등록명 4-METHYL-2-PENTANOL · 단일 화학물질

All ingredients

Ingredient Dictionary

4-METHYLPENTAN-2-OL

Definition

US FDA substance register · UNII 8U34XJK0R0 · registered name 4-METHYL-2-PENTANOL · 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

4-METHYLPENTAN-2-OLINCI2-Pentanol, 4-methyl-Synonym

CAS No.chemical registry number: 108-11-2
EC No.EU chemical inventory number: 203-551-7
DTXSIDUS EPA chemical ID: DTXSID2026781
DTXCIDUS EPA compound ID: DTXCID806781

IUPAC: 4-Methylpentan-2-ol
Molecular formula: C6H14O
Molecular weight: 102.177 g/mol

Measured properties

Appearance: Methyl isobutyl carbinol appears as a clear colorless liquid. Flash point 120 °F. Less dense than water. Vapors heavier than air. · Liquid, CBI
Odour: Mild odor.
Boiling point: 269.2 °F at 760 mmHg (USCG, 1999) · 133 °C @ 760 MM HG
Melting point: less than -130 °F (USCG, 1999) · -90 °C
Solubility: 2 % (NIOSH, 2024) · SOL IN ALC & ETHER.
Density: 0.807 at 68 °F (USCG, 1999) - Less dense than water, will float · 0.8075 @ 20 °C/4 °C
Stability: STABLE LIQ
Colour: colourless
Melting/freezing point: -90 ℃
Initial boiling point and range: 133 ℃(760 MM HG)
Flash point: 41 ℃
Evaporation rate: 0.43
Upper/lower flammability or explosive limits: 5.5 / 1 %
Vapour pressure: 2.8 ㎜Hg (20℃)
Water solubility: 1.64X10+4 (mg/kg )
Vapour density: 3.5
Relative density: 0.8075 (20℃)
n-Octanol/water partition coefficient (Kow): 1.43
Molecular weight: 102.18

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 24 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.

Solvent6
Lubricating agent3
Fragrance3
Fuel agents2
Flotation agent2
Photosensitive agent1
Chemical reaction regulator1
Intermediate1

5 other uses

Flavouring and nutrient1
Chelating agent1
Solids separation (precipitating) agent, not other1
Plating agent1
Surfactant (surface active agent)1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 3 eye studies are on record.

Classed as low3

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 8 studies

Ambiguous
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) 1992 according to
Category 6.3B (Category 3)
Skin Irritation · Read Across
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) 1992 according to EU Method B.6 (Skin Sensitisation) 1992
Not classified
Skin Irritation · Screening
Not classified
Skin Sensitization · Screening
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Severe Irritation
eye irritation: in vivo · Screening · EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) 1992 according to OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Category 2A
Eye Irritation · Screening