Ingredient Dictionary

SODIUM CAPRYLATE

Sodium octanoate is an organic sodium salt comprising equal numbers of sodium and octanoate ions.

Definition

Sodium octanoate is an organic sodium salt comprising equal numbers of sodium and octanoate ions. It contains an octanoate.

Source: PubChem

US FDA substance register · UNII 9XTM81VK2B · registered name Sodium Caprylate · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Surfactant that lifts dirtSURFACTANT - CLEANSINGMixes and holds oil and water togetherSURFACTANT - EMULSIFYING

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

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 カプリル酸Ｎａ: 本品は、カプリル酸のナトリウム塩であり、次の化学式で表される。

Source: JCIA labelling names (Japan)

Names & identifiers

SODIUM CAPRYLATEINCI소듐카프릴레이트Korean label name (MFDS standard)Octanoic acid, sodium saltSynonymカプリル酸ＮａJapanese labelling name

CAS No.chemical registry number: 1984-06-1
EC No.EU chemical inventory number: 217-850-5
DTXSIDUS EPA chemical ID: DTXSID3027451
DTXCIDUS EPA compound ID: DTXCID407451

IUPAC: Sodium octanoate
Molecular formula: C8H15NaO2
Molecular weight: 166.196 g/mol

Measured properties

Appearance: White powder, [MSDSonline]
Colour: white
Melting/freezing point: 225 ℃
Water solubility: 966600 ㎎/ℓ (25℃)
Relative density: 0.9949 ((0.9949 - 1.0092) g/cm3 (19.9 - 49.9 C))
n-Octanol/water partition coefficient (Kow): -1.38
Molecular weight: 167.23

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 10 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.

Emulsifier2
Surfactant (surface active agent)2
Corrosion inhibitor2
Etching agent1
Anti-caking agent1
Lubricating agent1
Intermediate1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

1 skin studies and 1 eye studies are on record.

Classed as moderate1

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 2 studies

Category 6.3A (Category 2)
Skin Irritation · Read Across
Category 6.4A (Category 2A)
Eye Irritation · Read Across