CAS No.74-83-9,Methyl bromide Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	74-83-9
Name:	Methyl bromide
Article Data:	294

Formula:	CH₃Br
Molecular Weight:	94.9388
Synonyms:	Detia gas EX-M;Metylu bromek [Polish];Methylbromid [German];Meth-O-Gas;Methogas;Methane, bromo-;Kayafume;Dowfume MC-2 Fumigant;Brom-O-Sol;Methyl fume;MBX;Terr-O-Gas 100;Dowfume MC-2R;Methyl bromide [UN1062] [Poison gas];Pestmaster;Bromometano [Italian];EPA Pesticide Chemical Code 053201;M-B-R 98;Zytox;Mbc-33 Soil Fumigant;R 40B1;Methyl bromide as a structural fumigant;Terr-O-Cide II;Dowfume MC-33;Bromur di metile [Italian];Brom-methan [German];Bromomethane;RCRA waste number U029;Terabol;Methane,bromo-;Dowfume MC-2;Superior Methyl Bromide-2;Pestmaster Soil Fumigant-1;Edco;Celfume;Drexel Plant Bed Gas;Metafume;
EINECS:	200-813-2
Density:	1.63 g/cm³
Melting Point:	-94 °C(lit.)
Boiling Point:	3.8 °C at 760 mmHg
Flash Point:	-34°C
Solubility:	1.522 g/100 mL in water
Appearance:	colourless gas with a chloroform-like odour
Hazard Symbols:	T, N, Xn, F,F+
Risk Codes:	23/25-36/37/38-48/20-50-59-68-38-20/22-11-67-66-19-12
Safety:	15-27-36/39-38-45-59-61-36/37-26-24-16-7
Transport Information:	UN 1062
PSA:	0.00000
LogP:	1.01110

Synthetic route

: 71-91-0
tetraethylammonium bromide

: 333-27-7
methyl trifluoromethanesulfonate

A: 74-83-9
methyl bromide

B: 35895-69-3
tetraethylammonium trifluoromethanesulphonate

Conditions

Conditions	Yield
In acetonitrile at 20℃; for 0.583333h; Temperature;	A n/a B 100%

...Expand

: cis-{(CH3)2Co(2,2'-bipyridine)}(ClO4)

A: 74-83-9
methyl bromide

B: 34557-54-5
methane

C: 74-84-0
ethane

Conditions

Conditions	Yield
With bromine In acetonitrile one-electron oxidn. of cis-Co complex by Br2 at 298 K; monitored by (1)H-NMR;	A 99% B <1 C 0.24%

...Expand

: trans-(CH3)2Co(11-hydroxy-2,3,9,10-tetramethyl-1,4,8,11-tetraazaundeca-1,3,8,10-tetraen-1-olate)

A: 74-83-9
methyl bromide

B: 34557-54-5
methane

C: 74-84-0
ethane

Conditions

Conditions	Yield
With bromine In acetonitrile one-electron oxidn. of trans-Co complex by Br2 at 298 K; monitored by (1)H-NMR;	A 99% B 0.15% C <1

...Expand

: 110-86-1
pyridine

: C6H12Br2O2Pt

A: 74-83-9
methyl bromide

B: 1395411-05-8
cis-Br(py)Pt(COMe)[C(OMe)(Me)]

Conditions

Conditions	Yield
In tetrahydrofuran-d8 at 55℃; for 2h;	A n/a B 98%

...Expand

: Cp(CO)2Re(CH3)2

: 75-62-7
Bromotrichloromethane

A: 74-83-9
methyl bromide

B: tricarbonylcyclopentadienylrhenium

C: C5H5(CO)2Re(CH3)Br

D: C5H5Re(CO)2(CH3)Cl

E: 67-72-1
hexachloroethane

Conditions

Conditions	Yield
With carbon monoxide In further solvent(s) Irradiation (UV/VIS); Irradiation of complex at 350-380 nm under 20 atm of CO in CBrCl3;;	A 81-87 B 97% C 78-85 D <4 E >65

...Expand

: 66-27-3
Methyl methanesulfonate

: 2857-97-8
trimethylsilyl bromide

A: 74-83-9
methyl bromide

B: 10090-05-8
trimethylsilyl methanesulfonate

Conditions

Conditions	Yield
for 6h; Heating;	A 95% B 96.5%

...Expand

: 149442-29-5
dimethyltribromostibine

A: 74-83-9
methyl bromide

B: 54553-06-9
dibromo(methyl)stibine

Conditions

Conditions	Yield
decompn. at 100°C in vac. of about 10 Torr; distn. from 130 to 134°C at 13 Torr; crystn. by cooling;	A n/a B 96%
decompn. at 100°C in vac. of about 10 Torr; distn. from 130 to 134°C at 13 Torr; crystn. by cooling;	A n/a B 96%
beim Stehenlassen;

: 66-27-3
Methyl methanesulfonate

: 506-96-7
Acetyl bromide

A: 74-83-9
methyl bromide

B: 5539-53-7
Acetyl methanesulfonate

Conditions

Conditions	Yield
at 100 - 110℃; for 1h;	A 95% B 55%

...Expand

: 512-56-1
trimethyl phosphite

: 74-83-9
methyl bromide

Conditions

Conditions	Yield
With boron tribromide; (N,N'-ethylenebis(3,5-di-tert-butylsalicylideneimine))AlBr In chloroform-d1; hexane at 20℃; for 0.5 - 24h; Product distribution / selectivity;	88%
With boron tribromide; salophen(tBu)AlBr In chloroform-d1; hexane at 20℃; for 0.5 - 24h; Product distribution / selectivity;	82%
With boron tribromide; (N,N'-propylenebis(3,5-di-tert-butylsalicylideneimine))AlBr In chloroform-d1; hexane at 20℃; for 0.5 - 24h; Product distribution / selectivity;	78%

: 2857-97-8
trimethylsilyl bromide

: 100-66-3
methoxybenzene

A: 74-83-9
methyl bromide

B: 1529-17-5
phenyltrimethylsilyl ether

Conditions

Conditions	Yield
In further solvent(s)	A 87% B 61%
In further solvent(s)	A 87% B 61%

...Expand

Raw Materials

100-39-0

420-37-1

431-47-0

Downstream Products

74-84-0

830-09-1

821-55-6

822-38-8

29184-68-7

41613-26-7

100-68-5

603-76-9

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Consensus Reports

IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 245.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 41 ,1986,p. 187.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 41 ,1986,p. 187.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory. Community Right-To-Know List. EPA Extremely Hazardous Substances List.

Standards and Recommendations

OSHA PEL: TWA 5 ppm (skin)
ACGIH TLV: TWA 1 ppm (skin); Not Classifiable as a Human Carcinogen
DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans
NIOSH REL: (Monohalomethanes) Reduce to lowest level

Analytical Methods

For occupational chemical analysis use NIOSH: Methyl Bromide, 2520.

Specification

The Methyl bromide is an organic compound with the formula CH₃Br. The IUPAC name of this chemical is bromomethane. With the CAS registry number 74-83-9, it is also named as DL-Methylbromide. The product's category is Organics. Besides, it is colourless gas with a chloroform-like odour.

The Methyl bromide is a recognized ozone-depleting chemical. It is used extensively as a pesticide. It is widely applied as a soil sterilant, mainly for production of seed but also for some crops such as strawberries and almonds. The Methyl bromide is also a precursor in the manufacture of other chemicals as a methylating agent, and has been used as a solvent to extract oil from seeds and wool.

Physical properties about Methyl bromide are: (1)ACD/LogP: 1.15; (2)ACD/LogD (pH 5.5): 1.15; (3)ACD/LogD (pH 7.4): 1.15; (4)ACD/BCF (pH 5.5): 4.39; (5)ACD/BCF (pH 7.4): 4.39; (6)ACD/KOC (pH 5.5): 100.36; (7)ACD/KOC (pH 7.4): 100.36; (8)Index of Refraction: 1.409; (9)Molar Refractivity: 14.41 cm3; (10)Molar Volume: 58.2 cm³; (11)Polarizability: 5.71×10^-24cm³; (12)Surface Tension: 20.6 dyne/cm; (13)Density: 1.63 g/cm³; (14)Enthalpy of Vaporization: 23.91 kJ/mol; (15)Boiling Point: 3.8 °C at 760 mmHg; (16)Vapour Pressure: 1590 mmHg at 25°C.

Preparation: this chemical can be prepared by methanol. This reaction will need reagent naphthalene and bromine.

Uses of Methyl bromide: it can be used to produce 1,4-dimethyl-pyridinium; bromide by heating. It will need reagent ethanol with reaction time of 10 hours.

When you are using this chemical, please be cautious about it as the following:
It is highly flammable and harmful by inhalation and if swallowed. It is toxic by inhalation and if swallowed and danger of serious damage to health by prolonged exposure through inhalation. Please keep container tightly closed, keep away from heat and keep away from sources of ignition - No smoking. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Besides, this chemical is irritating to eyes, respiratory system and skin. It may form explosive peroxides. It very toxic to aquatic organisms and vapours may cause drowsiness and dizziness. It is possible risk of irreversible effects. When you are using it, wear suitable gloves and eye/face protection. In case of accident or if you feel unwell seek medical advice immediately (show the label where possible). Please avoid release to the environment. Refer to special instructions/safety data sheet.

You can still convert the following datas into molecular structure:
(1)SMILES: BrC
(2)InChI: InChI=1/CH3Br/c1-2/h1H3
(3)InChIKey: GZUXJHMPEANEGY-UHFFFAOYAV
(4)Std. InChI: InChI=1S/CH3Br/c1-2/h1H3
(5)Std. InChIKey: GZUXJHMPEANEGY-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
child	LCLo	inhalation	1gm/m³/2H (1000mg/m³)	BLOOD: CHANGE IN CLOTTING FACTORS	Nippon Hoigaku Zasshi. Japanese Journal of Legal Medicine. Vol. 23, Pg. 241, 1969.
dog	LDLo	oral	500mg/kg (500mg/kg)	CARDIAC: PULSE RATE INCREASE WITHOUT FALL IN BP GASTROINTESTINAL: NAUSEA OR VOMITING	National Technical Information Service. Vol. OTS0528834,
guinea pig	LCLo	inhalation	300ppm/9H (300ppm)	BEHAVIORAL: MUSCLE WEAKNESS LUNGS, THORAX, OR RESPIRATION: "FIBROSIS, FOCAL (PNEUMOCONIOSIS)" SKIN AND APPENDAGES (SKIN): HAIR: OTHER	U.S. Public Health Service, Public Health Bulletin. Vol. 185, Pg. 1, 1929.
human	TCLo	inhalation	35ppm (35ppm)	BEHAVIORAL: ANOREXIA (HUMAN SKIN AND APPENDAGES (SKIN): CORROSIVE: AFTER TOPICAL EXPOSURE GASTROINTESTINAL: NAUSEA OR VOMITING	Industrial Medicine. Vol. 11, Pg. 575, 1942.
human	TDLo	skin	35gm/m³/40M-I (35000mg/m³)	SKIN AND APPENDAGES (SKIN): "DERMATITIS, IRRITATIVE: AFTER SYSTEMIC EXPOSURE"	Archives of Dermatology. Vol. 124, Pg. 917, 1988.
man	LCLo	inhalation	60000ppm/2H (60000ppm)	BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION GASTROINTESTINAL: NAUSEA OR VOMITING	British Journal of Industrial Medicine. Vol. 2, Pg. 24, 1945.
mouse	LC50	inhalation	1540mg/m³/2H (1540mg/m³)		"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 81, 1982.
rabbit	LC50	inhalation	28900mg/m³/30 (28900mg/m³)		Farmakologiya i Toksikologiya Vol. 8, Pg. 140, 1973.
rat	LC50	inhalation	302ppm/8H (302ppm)	BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY)	Toxicology and Applied Pharmacology. Vol. 81, Pg. 183, 1985.
rat	LD50	oral	214mg/kg (214mg/kg)		Toxicology and Applied Pharmacology. Vol. 72, Pg. 262, 1984.
rat	LD50	subcutaneous	135mg/kg (135mg/kg)		Industrial Health. Vol. 26, Pg. 101, 1988.