Basic information
- Name:
Bromocyclopentane
- CAS No.:
137-43-9
- Molecular Structure:

- Formula:
- C5H9Br
- Molecular Weight:
- 149.04
- Synonyms:
- Cyclopentane,bromo-;Cyclopentyl bromide;NSC 1110;AI3-23448;
- EINECS:
- 205-294-6
- Density:
- 1.445 g/cm3
- Boiling Point:
- 135 °C at 760 mmHg
- Flash Point:
- 35 °C
- Appearance:
- colorless to yellow liquid
- Risk Codes:
- 10
- Safety Description:
- 23-24/25-16 Details
- Transport Information:
- UN 1993 3/PG 3
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Chemistry
Molecule structure of Bromocyclopentane (CAS NO.137-43-9):
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IUPAC Name: Bromocyclopentane
Molecular Weight: 149.02896 g/mol
Molecular Formula: C5H9Br
Density: 1.445 g/cm3
Boiling Point: 135 °C at 760 mmHg
Flash Point: 35 °C
Index of Refraction: 1.51
Molar Refractivity: 30.84 cm3
Molar Volume: 103 cm3
Surface Tension: 35.4 dyne/cm
Enthalpy of Vaporization: 35.71 kJ/mol
Vapour Pressure: 9.73 mmHg at 25 °C
Storage Temp.: store at R.T.
Stability: stable. flammable. incompatible with strong oxidizing agents, strong bases.
XLogP3-AA: 2.3
Exact Mass: 147.988763
MonoIsotopic Mass: 147.988763
Canonical SMILES: C1CCC(C1)Br
InChI: InChI=1S/C5H9Br/c6-5-3-1-2-4-5/h5H,1-4H2
InChIKey: BRTFVKHPEHKBQF-UHFFFAOYSA-N
EINECS: 205-294-6
Product Categories: Pharmaceutical Intermediates; CHLORO ALKANE COMPOUNDS
Uses
Bromocyclopentane (CAS NO.137-43-9) is used as a solvent. It is used as an intermediate to manufacture surfactant, pharmaceuticals and other organic compounds.
Safety Profile
Risk Statements: 10
R10:Flammable.
Safety Statements: 23-24/25-16
S23:Do not breathe vapour.
S24/25:Avoid contact with skin and eyes.
S16:Keep away from sources of ignition.
RIDADR: UN 1993 3/PG 3
WGK Germany: 3
F: 8
HazardClass: 3
PackingGroup: III
HS Code: 29035990
Standards and Recommendations
APPEARANCE: clear to yellow liquid
CONTENT: 98.0% min
WATER: 0.1% max
Specification
Bromocyclopentane (CAS NO.137-43-9) is also named as AI3-23448 ; Cyclopentyl bromide ; NSC 1110 ; Cyclopentane, bromo- . Bromocyclopentane (CAS NO.137-43-9) is colorless to yellow liquid.

