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Merck
CN

239992

Sigma-Aldrich

Dibromomethane

≥99%

Synonym(s):

Methylene bromide

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About This Item

Empirical Formula (Hill Notation):
CH2Br2
CAS Number:
74-95-3
Molecular Weight:
173.83
Beilstein:
969143
EC Number:
200-824-2
MDL number:
MFCD00000168
UNSPSC Code:
12352100
PubChem Substance ID:
24854398

Key Documents

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vapor density

6.05 (vs air)

vapor pressure

34.9 mmHg ( 20 °C)

Assay

≥99%

refractive index

n20/D 1.541 (lit.)

bp

96-98 °C (lit.)

mp

−52 °C (lit.)

solubility

water: 11.70 g/kg at 15 °C(lit.)
water: 11.93 g/kg at 30 °C(lit.)
acetone: miscible(lit.)
alcohol: miscible(lit.)
diethyl ether: miscible(lit.)

density

2.477 g/mL at 25 °C (lit.)

SMILES string

BrCBr

InChI

1S/CH2Br2/c2-1-3/h1H2

InChI key

FJBFPHVGVWTDIP-UHFFFAOYSA-N

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Application

Dibromomethane (Methylene bromide) was used as an extractant in determination of 5-nitroimidazoles (5-NDZ) in environmental waters by micellar electrokinetic chromatography using dispersive liquid–liquid microextraction.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H332,H412

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 3

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
06101PH
04619HH
05109BI
14729JF
10902LZ

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Maykel Hernández-Mesa et al.
Journal of chromatography. A, 1341, 65-72 (2014-04-05)
A novel method consisting of cation-selective exhaustive injection and sweeping (CSEI-sweeping) as on-line preconcentration followed by a micellar electrokinetic chromatography (MEKC) separation has been developed for the determination of 5-nitroimidazoles (5-NDZ) in environmental waters. Moreover, dispersive liquid-liquid microextraction (DLLME) has
Lei Ji et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 67(1), 273-280 (2007-02-03)
The photodissociation dynamics of CH(2)Br(2) was investigated near 234 and 267 nm. A two-dimensional photofragment ion velocity imaging technique coupled with a [2+1] resonance-enhanced multiphoton (REMPI) ionization scheme was utilized to obtain the angular and translational energy distributions of the
N Abril et al.
Carcinogenesis, 18(10), 1883-1888 (1997-11-18)
Here we confirm and extend our previous studies demonstrating that the mutagenic potency of 1,2-dibromoethane (DBE) and dibromomethane (DBM) is markedly enhanced (not prevented) in bacteria expressing the O6-alkylguanine-DNA alkyltransferase (ATase) encoded by the Escherichia coli ogt gene. We demonstrate
Andrey Shalit et al.
Physical chemistry chemical physics : PCCP, 14(40), 13989-13996 (2012-09-20)
Single shot time resolved four wave mixing is a powerful tool for the acquisition of dynamic and spectroscopic data from molecules susceptible to bleaching or other photo-induced damage. We add polarization dependence to single shot methods, and demonstrate how magic
D A Whittington et al.
Biochemistry, 40(12), 3476-3482 (2001-04-12)
To investigate the role of protein cavities in facilitating movement of the substrates, methane and dioxygen, in the soluble methane monooxygenase hydroxylase (MMOH), we determined the X-ray structures of MMOH from Methylococcus capsulatus (Bath) cocrystallized with dibromomethane or iodoethane, or
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