C4H9Br
137.02 g/mol
Pharmaceutical IntermediateDanger
1-Bromobutane
CAS109-65-9EC203-691-9
Category
Pharmaceutical Intermediate
Compound Class
Halocarbon
Primary Use
Pharmaceutical Intermediate
1-Bromobutane is an organobromine compound that appears as a colorless liquid, though impure samples may be yellowish. It is insoluble in water but soluble in organic solvents, and is utilized as an alkylating agent and pharmaceutical intermediate.
Alkylating agent in organic synthesisPharmaceutical intermediate for manufacturing
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
ReferenceSame Category
1-Bromo-3-chloropropane
CAS109-70-6
pharmaceutical intermediate
ReferenceSame Category
1,3-propanediamine
CAS109-76-2
pharmaceutical intermediate
ReferenceSame Category
2-hydrazinoethanol
CAS109-84-2
pharmaceutical intermediate
ReferenceSame Category
Ethyl isocyanate
CAS109-90-0
pharmaceutical intermediate
Referencestereoisomer of
Butyl Bromide-d3
CAS55724-42-0
research compound
Referencestereoisomer of
Butyl-d9 bromide
CAS98195-36-9
research compound
Safety Reference
Danger
H225Highly flammable liquid and vapour
H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H351Suspected of causing cancer
H373May cause damage to organs through prolonged or repeated exposure
H411Toxic to aquatic life with long lasting effects
H350May cause cancer
H332Harmful if inhaled
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 1-Bromobutane (CAS 109-65-9) is 2903.69.
HS code (international, 6-digit)
2903.69
EU CN code (8-digit)
2903 69 19
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
1-bromobutane
InChIKey
MPPPKRYCTPRNTB-UHFFFAOYSA-N
SMILES
CCCCBr
Synonyms (20)
- BBU
- 1-BroMobutane-1d4
- 1-Bromobutane
- 1-Butyl bromide
- 1-bromo-n-butane
- 4-bromobutane
- Bromobutane
- Butane, 1-bromo-
- Butane, bromo-
- Butyl bromide
- N-BUTYL BROMIDE
- l-bromobutane
- n-Bu-Br
- n-butyl bromine
- n-butylbromid
- propyl methyl bromide
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