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Merck
CN

65950

Sigma-Aldrich

Bromomethane

purum, ampule, ≥99.5% (GC)

Synonym(s):

Methyl bromide

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About This Item

Empirical Formula (Hill Notation):
CH3Br
CAS Number:
74-83-9
Molecular Weight:
94.94
Beilstein:
1209223
EC Number:
200-813-2
MDL number:
MFCD00000166
UNSPSC Code:
12352100
PubChem Substance ID:
329760135

Key Documents

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vapor density

3.3 (20 °C, vs air)

vapor pressure

1420 mmHg ( 20 °C)

grade

purum

Assay

≥99.5% (GC)

autoignition temp.

996 °F

quality

ampule

expl. lim.

~16 %

bp

4 °C (lit.)

mp

−94 °C (lit.)

density

1.73 g/mL at 20 °C
3.3 g/mL at 25 °C (lit.)

SMILES string

O[C@H]1[C@@H](O)[C@H](N2C=NC(C(N)=O)=C2N)O[C@@H]1COP(O)(O)=O
CBr

InChI

1S/CH3Br/c1-2/h1H3

InChI key

GZUXJHMPEANEGY-UHFFFAOYSA-N

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Other Notes

Sales restrictions may apply

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Muta. 2 - Ozone 1 - Press. Gas Liquefied gas - Skin Irrit. 2 - STOT RE 2 - STOT SE 3

Target Organs

Central nervous system, Respiratory system

Storage Class Code

2A - Gases

WGK

WGK 3

Flash Point(F)

<-22.0 °F - liquid

Flash Point(C)

< -30 °C - liquid

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Ting Bin Lim et al.
Journal of the American Chemical Society, 133(30), 11534-11539 (2011-06-24)
We describe the dissociative attachment (DA) of methyl bromide to form chemisorbed CH(3) and Br on a Si(100)-2×1 surface at 270 K. The patterns of DA were studied experimentally by ultra-high vacuum scanning tunneling microscopy (STM) and interpreted by ab
Spencer S Walse et al.
Journal of economic entomology, 106(3), 1155-1163 (2013-07-20)
Methyl bromide (MB) chamber fumigations were evaluated for postharvest control of light brown apple moth, Epiphyas postvittana (Walker) (Lepidoptera: Tortricidae), in fresh fruit destined for export from California. To simulate external feeding, larvae were contained in gas-permeable cages and distributed
Paul E Stromberg et al.
Clinical toxicology (Philadelphia, Pa.), 51(3), 182-185 (2013-03-12)
Methyl bromide is a halogenated aliphatic hydrocarbon that exists as a colorless gas or a volatile liquid. Methyl bromide historically had been used in fire extinguishers but is more commonly used as a gas fumigant for soil-borne diseases and pests.
Ganghua Tang et al.
Nuclear medicine communications, 32(6), 466-474 (2011-04-27)
[C]methyl iodide ([C]CH3I) is the most extensively used methylation agent for the preparation of a majority of C-labeled positron emission tomography (PET) radiotracers, which is commonly produced by the wet method and the gas-phase method. On account of the complexity
Lygia T Budnik et al.
Environmental health : a global access science source, 11, 5-5 (2012-01-31)
Although ozone-depleting methyl bromide was destined for phase-out by 2005, it is still widely applied as a consequence of various critical-use-exemptions and mandatory international regulations aiming to restrict the spread of pests and alien species (e.g. in globalized transport and
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