Ingredient Dictionary

ARACHIDIC ACID

Icosanoic acid is a C20 striaght-chain saturated fatty acid which forms a minor constituent of peanut (L.

How much products actually contain

No product states its amount yet.

Of the products containing it, 43 list it before the 1% line and 138 after it (usually 1% or less).

Products using this ingredient

12 of 181 confirmed · likeliest to carry enough first · See all 181

Definition

Icosanoic acid is a C20 striaght-chain saturated fatty acid which forms a minor constituent of peanut (L. arachis) and corn oils. Used as an organic thin film in the production of liquid crystals for a wide variety of technical applications. It has a role as a plant metabolite. It is a long-chain fatty acid and a straight-chain saturated fatty acid. It is a conjugate acid of an icosanoate.

Source: PubChem

US FDA substance register · UNII PQB8MJD4RB · registered name ARACHIDIC ACID · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Mixes and holds oil and water togetherSURFACTANT - EMULSIFYINGWashes away surface impuritiesCLEANSINGMakes a clear formula opaqueOPACIFYINGSurfactant that lifts dirtSURFACTANT - CLEANSING

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

Reviewed by CIR: Final Report: Safety Assessment of Fatty Acids and Fatty Acid Salts as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name アラキン酸: 本品は、次の化学式で表される脂肪酸である。

Source: JCIA labelling names (Japan)

Names & identifiers

ARACHIDIC ACIDINCI아라키딕애씨드Korean label name (MFDS standard)Eicosanoic acidSynonymアラキン酸Japanese labelling name

CAS No.chemical registry number: 506-30-9
EC No.EU chemical inventory number: 208-031-3
DTXSIDUS EPA chemical ID: DTXSID1060134
DTXCIDUS EPA compound ID: DTXCID3040859

IUPAC: Icosanoic acid
Molecular formula: C20H40O2
Molecular weight: 312.538 g/mol

Measured properties

Appearance: Liquid, Other Solid · Solid, [Merck Index] White crystalline flakes, [Alfa Aesar MSDS]
Boiling point: 328.00 °C. @ 760.00 mm Hg
Melting point: 75.4 °C
Odour: odourless
pH: 4.85
Melting/freezing point: 46.7 ℃
Initial boiling point and range: 325 ℃
Flash point: 134 ℃
Flammability (solid, gas): not flammable
Vapour pressure: 0 ㎩ (25℃)
Water solubility: 44 ㎎/ℓ (33℃)
Vapour density: 0.535 g/㎤
n-Octanol/water partition coefficient (Kow): 37.25 (Pow, 33℃)

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.

Surfactant (surface active agent)5
Opacifer3
Softener and conditioner2
Intermediate2
Lubricating agent2
Soil amendments2
Cleaning agent2
Emulsifier2

4 other uses

Monomers1
Fuel1
Processing aids not otherwise specified1
Surface modifier1

Source: US EPA CompTox dashboard