C18H38S
286.6 g/mol
Pharmaceutical IntermediateWarning
1-OCTADECANETHIOL
CAS2885-00-9EC220-744-1
Category
Pharmaceutical Intermediate
Compound Class
Other
Primary Use
Pharmaceutical Intermediate
1-Octadecanethiol is a long-chain alkyl thiol used as a pharmaceutical intermediate and chemical reagent. It is a highly hydrophobic, non-aromatic compound with a thiol group at one end of a straight-chain hydrocarbon.
Chemical organic synthesis reagentSynthetic rubber processing aidTarnish-preventing agent
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
StrongStructure SimilarSimilarity 1.00
Cetyl mercaptan
CAS2917-26-2
Intermediate in organic synthesis
StrongStructure SimilarSimilarity 1.00
1-Octanethiol
CAS111-88-6
Polymerization conditioner and organic synthesis
StrongStructure SimilarSimilarity 1.00
1-dodecanethiol
CAS112-55-0
Polymerization regulator for synthetic rubber
StrongStructure SimilarSimilarity 1.00
1-decanethiol
CAS143-10-2
chemical intermediate and research reagent
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pharmaceutical intermediate
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Diazepam N-oxide
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pharmaceutical intermediate
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6,7-dimethoxyquinazoline-2,4(1H,3H)-dione
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pharmaceutical intermediate
ReferenceSame Category
Lifitegrast Impurity 125
CAS2889431-14-3
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H413May cause long lasting harmful effects to aquatic life
Customs Tariff Classification
The international HS code for 1-OCTADECANETHIOL (CAS 2885-00-9) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 95
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
octadecane-1-thiol
InChIKey
QJAOYSPHSNGHNC-UHFFFAOYSA-N
SMILES
CCCCCCCCCCCCCCCCCCS
Synonyms (11)
- 1-Mercaptooctadecane
- 1-OCTADECANETHIOL
- 1-Octadecyl mercaptan
- 1-octadecanthiol
- Octadecanethiol
- Octadecyl mercaptan
- Stearyl mercaptan
- n-Octadecyl mercaptan
- n-octadecanethiol
- octadecylthiol
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