Octadecan-1-amine is an 18-carbon primary aliphatic amine.
Definition
Octadecan-1-amine is an 18-carbon primary aliphatic amine. It has a role as a film-forming compound.
Source: PubChem
US FDA substance register · UNII FFV58UNY7O · registered name STEARAMINE · single chemical substance
Cosmetic roles
Safety & regulatory references
- Restricted or banned
- China · South Korea
Source: MFDS (Korea) cosmetic regulatory information
Argentina · Brazil
- Maximum concentration permitted at final product : Under maximum secondary amine: 0.5%
- Other limitations and requirements : No use with nitrosating systems. Minimum 99% -Pureza. Maximum -Tenor of secondary amines in raw materials 0.5%. Maximum nitrosamine -Tenor: 50 ug / kg. -Envasar / Nitrite - free store in containers.
ASEAN
- Maximum authorised concentration in the finished cosmetic product : Maximum secondary amine content: 0.5%
- Other limitations and requirements : • Do not use with nitrosating systems • Minimum purity: 99% • Maximum secondary amine content: 0.5% (applies to raw materials) • Maximum nitrosamine content: 50 μg/kg • Keep in nitrite-free containers
European Union
- Maximum concentration in ready for use preparation : Maximum secondary amine content: 0.5%
- Other : - Do not use with nitrosating systems - Minimum purity: 99% - Maximum secondary amine content: 0.5% (applies to raw materials) - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
Restriction III/61
Source: EU CosIng ingredient list
Reviewed by CIR: Final Report on the Safety Assessment of Lauramine and Stearamine
CIR reviewed this ingredient and flagged its status as: CIR insufficient data ingredients - use not supported (insufficient data or use not supported — CIR's own classification, not a full safety-as-used conclusion).
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name ステアラミン: 本品は、次の化学式で表される脂肪族アミンである。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 124-30-1
- EC No.EU chemical inventory number
- 204-695-3
- DTXSIDUS EPA chemical ID
- DTXSID1025801
- DTXCIDUS EPA compound ID
- DTXCID505801
- IUPAC
- Octadecan-1-amine
- Molecular formula
- C18H39N
- Molecular weight
- 269.517 g/mol
Measured properties
- Appearance
- Octadecylamine appears as a white solid. Insoluble in water and less dense than water. Hence floats on water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion. Used to make other chemicals. · Dry Powder, Other Solid, Large Crystals, CBI, Liquid
- Boiling point
- 660 °F at 760 mmHg (NTP, 1992) · 346.8 °C @ 760 mm Hg
- Melting point
- 120 to 126 °F (NTP, 1992) · 52.9 °C
- Solubility
- less than 1 mg/mL at 72 °F (NTP, 1992) · Insol in water, sol in alcohol, ether, benzene, very sol in chloroform, miscible in acetone
- Density
- 0.8618 at 68 °F (NTP, 1992) - Less dense than water, will float · 0.8618 @ 20 °C/4 °C
- Dissociation constant
- pKa = 10.65
- Melting/freezing point
- 53 ℃
- Initial boiling point and range
- 349 ℃
- Flash point
- 110 ℃
- Vapour pressure
- 0.0000438 ㎜Hg (at 25C(est.))
- Water solubility
- 0.001796 ㎎/ℓ ( (calculated))
- Vapour density
- 9.3 ()
- Relative density
- (0.8618)
- n-Octanol/water partition coefficient (Kow)
- 7.71 ((est.))
- Molecular weight
- 269.52
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 14 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-static agent4
- Processing aids not otherwise specified3
- Intermediate2
- No specific technical function2
- Lubricating agent1
- Surfactant (surface active agent)1
- Corrosion inhibitor1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
8 skin studies and 4 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 12 studies
- SkinIrr2
Skin Irritation · QSAR Predicted - Classification not possible
Skin Sensitization · Screening - SkinSens1
Skin Sensitization · QSAR Predicted - Category 6.5B (Category 1)
Skin Sensitization · Read Across - Category 2
Skin Irritation · Screening - Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to - Skin Irrit. 2
Skin Irritation · Authoritative - Category 8.2C (Category 1C)
Skin Irritation · Read Across - Category 2A
Eye Irritation · Screening - Category 8.3A (Category 1)
Eye Irritation · Read Across - Severe Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to - Eye Dam. 1
Eye Irritation · Authoritative
Source: US EPA CompTox dashboard
Related literature
- Dual osmotic controlled release platform for antibiotics to overcome antimicrobial-resistant infections and promote wound healing. · 2024
- Annual Review of Cosmetic Ingredient Safety Assessments: 2007-2010 · 2011
- Final Report on the Safety Assessment of Lauramine and Stearamine · 1995
- Final Report on the Safety Assessment of Lauramine Oxide and Stearamine Oxide · 1994
Linked databases 21
- 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
- MFDS (Korea) cosmetic regulatory information 2 3
- NIST Chemistry WebBook
- PubChem 2
- Tlooto literature search 2 3 4
- UniChem cross-reference IDs
- US Cosmetic Ingredient Review (CIR) 2 3
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata