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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/REAXYS Number:
969143
EC Number:
200-824-2
MDL number:
MFCD00000168
UNSPSC Code:
12352100
PubChem Substance ID:
24854398

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[1].

replaced by

Product No.
Description
Pricing

D41686

Dibromomethane, 99%

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H332,H412

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 3

Storage Class

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

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
06101PH
04619HH
05109BI
09416PF
04801TL

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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
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
N Abril et al.
Chemical research in toxicology, 12(6), 544-551 (1999-06-16)
The effect of expression of the DNA repair protein, O6-alkylguanine-DNA alkyltransferase, on the growth inhibitory effects of the dibromoalkanes (DBA) dibromomethane (DBM) and dibromoethane (DBE) was determined in Chinese hamster lung fibroblasts transfected with and expressing high levels of the
Marie E Archbold et al.
Rapid communications in mass spectrometry : RCM, 19(3), 337-342 (2005-01-13)
A pre-concentration system has been validated for use with a gas chromatography/mass spectrometry/isotope ratio mass spectrometer (GC/MS/IRMS) to determine ambient air (13)C/(12)C ratios for methyl halides (MeCl and MeBr) and chlorofluorocarbons (CFCs). The isotopic composition of specific compounds can provide
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