Ingredient Dictionary

OCTENE

1-octene is an octene with an unsaturation C-1.

Definition

1-octene is an octene with an unsaturation C-1.

Source: PubChem

US FDA substance register · UNII E5VK21B9RC · registered name Caprylene · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Base that dissolves other ingredientsSOLVENT

Safety & regulatory references

Korea’s toxic-substance GHS classification: Danger · H304 (category 1) · H400 (category 1) · H410 (category 1) · +1 more

Source: Korea toxic substances GHS register (NIER)

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

Names & identifiers

OCTENEINCI옥텐Korean label name (MFDS standard)1-OcteneSynonym

CAS No.chemical registry number: 111-66-0
EC No.EU chemical inventory number: 203-893-7
DTXSIDUS EPA chemical ID: DTXSID6025804
DTXCIDUS EPA compound ID: DTXCID705804

IUPAC: Oct-1-ene
Molecular formula: C8H16
Molecular weight: 112.216 g/mol

Measured properties

Appearance: 1-octene appears as a colorless liquid. Flash point 70 °F. Insoluble in water and less dense (at about 6 lb / gal) than water. Hence floats on water. Vapors are heavier than air and may settle in depressions. Reported to biodegrade very slowly. Used in organic synthesis, surfactants, and plasticizers. · Liquid
Boiling point: 250.3 °F at 760 mmHg (USCG, 1999) · 121.2 °C @ 760 mm Hg
Melting point: -151 °F (USCG, 1999) · -101.7 °C
Solubility: Miscible with ethanol, ether · Miscible in ethanol, soluble in ethyl ether and acetone
Density: 0.715 at 68 °F (USCG, 1999) - Less dense than water, will float · 0.7149 @ 20 °C/4 °C
Viscosity: 0.656 cSt at 20 °C · 0.656 cSt (@ 20 ℃)
Colour: colourless
Melting/freezing point: -102 ℃
Initial boiling point and range: 123 ℃
Flash point: 10 ℃(c.c.)
Flammability (solid, gas): flammable
Upper/lower flammability or explosive limits: 0.7 / 3.9 %
Vapour pressure: 17.4 ㎜Hg (@ 25 ℃)
Water solubility: 4.1 ㎎/ℓ (@ 25 ℃)
Vapour density: 3.9
Relative density: 0.7149 (@ 20 ℃)
n-Octanol/water partition coefficient (Kow): 4.57
Auto-ignition temperature: 256 ℃
Molecular weight: 112.22

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 15 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.

Monomers3
Intermediate3
Flavouring and nutrient2
Chemical reaction regulator2
Viscosity modifier2
Lubricating agent1
Fragrance1
Solvent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

17 skin studies and 8 eye studies are on record.

Classed as highly irritating5Classed as moderate3Classed as low31

The studies disagree (the most common conclusion covers 13%), 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 25 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to EPA OTS 798.4470 (Acute Dermal Irritation) according to
Category 6.3A (Category 2)
Skin Irritation · Read Across
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: U.S. EPA FIFRA (Pesticide Assessment Guidelines Subdivision F/TSCA (798.4470) according to OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to EPA OTS 798.4470 (Acute Dermal Irritation) according to
Moderate or Mild Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to other guideline: 16 CFR 1500.41 according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: Federal Hazardous Substances Labeling Act (FHSLA) according to
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation)
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) OPPTS 870.2500 according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: Federal Hazardous Substances Labelling Act (FHSLA) according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: Federal Hazardous Substance Labelling Act (FHSLA) according to
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to OECD Guideline 406 (Skin Sensitisation)
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to
Moderate or Mild Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: Federal Hazardous Substances Labeling Act (FHSLA) according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: Federal Hazardous Substances Labelling Act according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: Federal Register 28 (110), 6.6.1963. paragraph 191.12 Test for eye irritants. according to
Not classified
Eye Irritation · Screening
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) according to