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Chemical substance record

Bromoethane

74-96-4C2H5Br108.966 g/mol

A bromoalkane that is ethane carrying a bromo substituent. It is an alkylating agent used as a chemical intermediate in various organic syntheses. — ChEBI

Safety references

Safety documents & references

2 indexed references
US · NIOSH

Occupational chemical safety guide

Ethyl bromide

Read official guide
JP · NITE

Government GHS classification

H30-C-124-MHLW · FY2018

View classification

Find a product-specific SDS

Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.

Identity & molecular properties

Source-linked values
CAS number74-96-4ChEBI ↗
Molecular formulaC2H5BrChEBI ↗
Molar mass108.966 g/molChEBI ↗
Monoisotopic mass107.95746 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:47232ChEBI ↗

Cross-source molecular data

PubChem
Molar mass108.97 g/molPubChem ↗
Exact mass107.95746 DaPubChem ↗
Computed XLogP1.4PubChem ↗
Topological polar surface area (Ų)0PubChem ↗
H-bond donors0PubChem ↗
H-bond acceptors0PubChem ↗
Rotatable bonds0PubChem ↗

PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.

Names & structural identifiers

Copy any identifier
bromoethane
bromoethane
RDHPKYGYEGBMSE-UHFFFAOYSA-N
CCBr
InChI=1S/C2H5Br/c1-2-3/h2H2,1H3

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

alkylating agentlocal anaestheticsolventcarcinogenic agentrefrigerant

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Safety classification · Japan

NITE / Japanese government
Japan · FY2018 source classification
Bromoethane · H30-C-124-MHLW
EndpointReported classification
Flammable liquidsCategory 2

Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.

Read the original NITE classification

Mass ↔ amount of substance

Calculated from sourced mass
Equivalent amount
0.00917717 mol

Uses 108.966 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions
Br
Bromine · 1 atom
73.33%
C
Carbon · 2 atoms
22.05%
H
Hydrogen · 5 atoms
4.63%

Calculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.

Research & patent references

Selected source associations

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:47232

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

NCBI PubChem · CID 6332 · retrieved 2026-09-27

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.