Octadecanamide is a fatty amide of stearic acid.
Definition
Octadecanamide is a fatty amide of stearic acid. It has a role as a metabolite. It is functionally related to an octadecanoic acid.
Source: PubChem
US FDA substance register · UNII YQX129FH1U · registered name STEARAMIDE · single chemical substance
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name ステアラミド: 本品は、次の化学式で表される脂肪族アミドである。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 124-26-5
- EC No.EU chemical inventory number
- 204-693-2
- EC No.EU chemical inventory number
- 931-695-7
- DTXSIDUS EPA chemical ID
- DTXSID9027025
- DTXCIDUS EPA compound ID
- DTXCID307025
- IUPAC
- Octadecanamide
- Molecular formula
- C18H37NO
- Molecular weight
- 283.5 g/mol
Measured properties
- Appearance
- solid
- Colour
- white
- Melting/freezing point
- 109 ℃
- Initial boiling point and range
- 250~251 ℃ (@ 12 mmHg)
- Vapour pressure
- 1.017 ㎩ (calc., @ 111 ℃)
- Water solubility
- 0 g/ℓ (@ 20 ℃)
- Vapour density
- 9.78
- Relative density
- 0.87 (@ 20 ℃)
- n-Octanol/water partition coefficient (Kow)
- 6.7
- Molecular weight
- 283.30
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: KOSHA safety data sheets (Korea)
What products actually use it for
What the 47 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.
- Anti-adhesive/cohesive23
- Lubricating agent9
- Viscosity modifier4
- Catalyst2
- Processing aids not otherwise specified2
- Adhesion/cohesion promoter1
- Hardener1
- Demulsifier1
4 other uses
- Anti-slip agent1
- Wetting agent (non-aqueous)1
- Foamant1
- Opacifer1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
1 skin studies and 0 eye studies are on record.
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 1 studies
- SkinSens1
Skin Sensitization · QSAR Predicted
Source: US EPA CompTox dashboard
Related literature
- Final Report on the Safety Assessment of Stearamide DIBA-Stearate · 2001
- Synthesis of N-ethanol-2-(myristyl/palmityl)-3-oxo(stearamide/arachidamide) and its physical properties for a cosmetic raw material · 2000
- Fatty amidoamine derivatives: N,N-dimethyl-N-(3-alkylamidopropyl)amines and their salts · 1968
Linked databases 19
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- NIST Chemistry WebBook
- PubChem
- Tlooto literature search 2 3
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata