C4H10S
90.19 g/mol
Flavor & FragranceDanger
Isobutyl mercaptan
CAS513-44-0EC208-162-6
Category
Flavor & Fragrance
Compound Class
Other
Primary Use
flavoring agent and odorant
2-Methyl-1-propanethiol, also known as isobutyl mercaptan, is a sulfur-containing organic compound naturally reported in guava and skunk secretions. It is primarily recognized for its role as a flavoring agent and odorant in various applications.
flavoring agentodorant
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
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Flavoring agent and fragrance ingredient
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Fragrance ingredient
ReferenceSame Category
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Fragrance ingredient
Safety Reference
Danger
H225Highly flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Isobutyl mercaptan (CAS 513-44-0) 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
2-methylpropane-1-thiol
InChIKey
BDFAOUQQXJIZDG-UHFFFAOYSA-N
SMILES
CC(C)CS
Synonyms (15)
- 1-Isobutanethiol
- 1-Mercapto-2-methylpropane
- 1-Mercaptoisobutane
- 1-Propanethiol, 2-methyl-
- 2-METHYL-1-PROPANETHIOL
- 2-Methyl propanethiol
- 2-Methyl-1-propylthiol
- 2-Methylpropane-1-thiol
- 2-Methylpropyl mercaptan
- FEMA 3874
- Isobutanethiol
- Isobutyl mercaptan
- Isobutyl thiol
- Thioisobutyl alcohol
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