C21H46BrN
392.5 g/mol
cosmetic_ingredientDanger
Octadecyltrimethylammonium bromide
CAS1120-02-1EC214-294-5
Category
cosmetic_ingredient
Compound Class
Other
Primary Use
Surfactant in personal care products
Octadecyltrimethylammonium bromide is a quaternary ammonium salt used as a surfactant in personal care products. It is also recognized as a pharmaceutical intermediate and is listed as the ingredient Steartrimonium Bromide by the Cosmetic Ingredient Review.
Surfactant in personal care productsPharmaceutical intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Trimethyl octadecyl ammonium chloride
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StrongStructure SimilarSimilarity 1.00
Cetrimonium bromide
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StrongStructure SimilarSimilarity 1.00
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StrongStructure SimilarSimilarity 1.00
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ApplicationSame Use
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ReferenceSame Category
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Safety Reference
Danger
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Octadecyltrimethylammonium bromide (CAS 1120-02-1) is 2923.90.
HS code (international, 6-digit)
2923.90
EU CN code (8-digit)
2923 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
trimethyl(octadecyl)azanium bromide
InChIKey
SZEMGTQCPRNXEG-UHFFFAOYSA-M
SMILES
CCCCCCCCCCCCCCCCCC[N+](C)(C)C.[Br-]
Synonyms (20)
- OTAB
- CATINAL STB
- ODTEA Br cpd
- OctMAB
- Steartrimonium Bromide
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