English Safety Data Sheet Database 中文版 MSDS

1-bromo-2-methylpropane

CAS No. 78-77-3 | PubChem CID 6555
Section 1. Identification
Chemical Name1-bromo-2-methylpropane CAS No.78-77-3
Synonymsiso-butyl bro-mide Chinese Name1-溴-2-甲基丙烷
Molecular FormulaC4H9Br Molecular Weight137.018
UN No.2342 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS02 · Flammable GHS07 · Irritant
Hazard Statements H225H315H319H335
Precautionary Statements P210P233P240P241P242P243P261P264P264+P265P271P280P302+P352P303+P361+P353P304+P340P305+P351+P338P319P321P332+P317P337+P317P362+P364P370+P378P403+P233P403+P235P405P501

Section 2. Hazards Identification

H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]

H315 (71.7%): Causes skin irritation [Warning Skin corrosion/irritation]

H319 (69.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H335 (70.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 99 reports by companies from 15 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H225: Highly Flammable liquid and vapor [Danger Flammable liquids]

P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Section 9. Physical and Chemical Properties

Colorless liquid; [Merck Index] Light yellow liquid; [Sigma-Aldrich MSDS]

72.0 [mmHg]

Boiling point

Diamagnetic susceptibility

Dielectric constant

Fusion temperature

Heat of sublimation

Magnetic susceptibility

Melting temperature

Molecular structure

Nuclear quadrupole coupling

Nuclear quadrupole moment

Optical coefficient

Phase transition

Refractive index

Rotational excitation cross section

Surface tension

Thermal expansion coefficient

Transition enthalpy

Vapor pressure

Virial coefficient

Viscosity

Flammable agents - 3rd degree

Solvents -> Brominated Solvents

Section 11. Toxicological Information

Neurotoxin - Acute solvent syndrome

LC50 (mouse) = 50,500 mg/m3

Source: PubChem CID 6555 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 10:02:00.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.