Basic information
- Name:
4-Bromo-1-butene
- CAS No.:
5162-44-7
- Molecular Structure:

- Formula:
- C4H7Br
- Molecular Weight:
- 135.01 .
- Synonyms:
- 1-Bromo-3-butene;3-Butenyl bromide;4-Bromobutene-1;Allylcarbinyl bromide;Homoallyl bromide;
- EINECS:
- 225-937-4
- Density:
- 1.312 g/cm3
- Boiling Point:
- 99.3 °C at 760 mmHg
- Flash Point:
- 9.4 °C
- Appearance:
- colourless liquid
- Hazard Symbols:
F,
Xn,
Xi- Risk Codes:
- 11-36/37-42/43
- Safety Description:
- 26-36/37/39 Details
- Transport Information:
- UN 1993 3/PG 2
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Chemistry
Product Name: 4-Bromo-1-butene (CAS NO.5162-44-7)

Molecular formula: C4H7Br
Molecular Weight: 135
EINECS: 225-937-4
Boiling point: 98-100 °C(lit.)
Flash point: 49 °F
Density: 1.33 g/mL at 25 °C(lit.)
Refractive index: n20/D 1.462(lit.)
Storage temp.: 2-8°C
Sensitive: Light Sensitive
Index of Refraction: 1.457
Molar Refractivity: 28.03 cm3
Molar Volume: 102.8 cm3
XLogP3-AA: 2.1
H-Bond Donor: 0
H-Bond Acceptor: 0
Structure Descriptors of 4-Bromo-1-butene (CAS NO.5162-44-7):
IUPAC Name: 4-bromobut-1-ene
Canonical SMILES: C=CCCBr
InChI: InChI=1S/C4H7Br/c1-2-3-4-5/h2H,1,3-4H2
InChIKey: DMAYBPBPEUFIHJ-UHFFFAOYSA-N
Product Categories: Halides; omega-Functional Alkanols, Carboxylic Acids, Amines & Halides; omega-Unsaturated Halides; Alkenyl; Halogenated Hydrocarbons; Organic Building Blocks
Uses
4-Bromo-1-butene (CAS NO.5162-44-7) is used for drug intermediates.
Consensus Reports
4-Bromo-1-butene (CAS NO.5162-44-7) is reported in EPA TSCA Inventory.
Safety Profile
Safety Information of 4-Bromo-1-butene (CAS NO.5162-44-7):
Hazard Codes: F
, Xn
,Xi
Xi
Risk Statements information:
11: Highly Flammable
36/37: Irritating to eyes and respiratory system
42/43: May cause sensitization by inhalation and skin contact
Safety Statements information:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
F: 8-19
HazardClass: 3
PackingGroup: II
HS Code: 29033036
RIDADR: UN 1993 3/PG 2
WGK Germany: 3
A dangerous fire hazard (flash point <1°C). Violent reaction with chloromethylphenylsilane + chloroplatinic acid. When heated to decomposition it emits toxic fumes of Br−.
Specification
4-Bromo-1-butene , its CAS NO. is 5162-44-7, the synonyms are 4-bromobut-1-ene ; 4-Bromobutene ; 4-Bromobutene-(1) ; Homoallyl bromide ; 4-bromo-1-buten ; 4-bromo-but-1-ene ; 1-Bromo-3-butene;1-butene,4-bromo- .

