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74-83-9

Basic Information
CAS No.: 74-83-9
Name: Methyl bromide
Molecular Structure:
Molecular Structure of 74-83-9 (Methyl bromide)
Formula: CH3Br
Molecular Weight: 94.95
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: ToxicT, DangerousN, HarmfulXn, FlammableF,HighlyF+
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
ConditionsYield
In acetonitrile at 20℃; for 0.583333h; Temperature;A n/a
B 100%

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

A

74-83-9

methyl bromide

B

34557-54-5

methane

C

74-84-0

ethane

Conditions
ConditionsYield
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%

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
ConditionsYield
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
110-86-1

pyridine

C6H12Br2O2Pt

A

74-83-9

methyl bromide

B

1395411-05-8

cis-Br(py)Pt(COMe)[C(OMe)(Me)]

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

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
ConditionsYield
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
66-27-3

Methyl methanesulfonate

2857-97-8

trimethylsilyl bromide

A

74-83-9

methyl bromide

B

10090-05-8

trimethylsilyl methanesulfonate

Conditions
ConditionsYield
for 6h; Heating;A 95%
B 96.5%
149442-29-5

dimethyltribromostibine

A

74-83-9

methyl bromide

B

54553-06-9

dibromo(methyl)stibine

Conditions
ConditionsYield
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
ConditionsYield
at 100 - 110℃; for 1h;A 95%
B 55%
512-56-1

trimethyl phosphite

74-83-9

methyl bromide

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

CpRe(CO)2(CH3)2

75-62-7

Bromotrichloromethane

A

74-83-9

methyl bromide

dia-cyclopentadienyldibromodicarbonyl Re(III)

CpRe(CO)2(CH3)Br

Conditions
ConditionsYield
With CO In dichloromethane-d2 Irradiation (UV/VIS); 355-385 nm light;A 87%
B n/a
C 85%
67-56-1

methanol

74-83-9

methyl bromide

Conditions
ConditionsYield
With bromine for 1h;84%
With bromine; pyrographite at 180 - 400℃;
With zinc bromide-kieselguhr; bromine at 180 - 400℃;
22024-99-3

2-nitrobenzenesulfenyl bromide

A

1155-00-6

bis(2-nitrophenyl)disulfide

B

74-83-9

methyl bromide

C

3058-47-7

methyl 2-nitrophenyl sulfide

Conditions
ConditionsYield
With tetramethylstannane; tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran at 25℃; for 4h;A 83%
B n/a
C n/a
67-56-1

methanol

124862-13-1

P-(bromomethyl)-N,N,N',N'-tetraisopropylphosphonous diamide

A

74-83-9

methyl bromide

B

97135-53-0

N,N,N',N'-Tetraisopropyl-P-methylphosphonic diamide

Conditions
ConditionsYield
multistep reaction; further (α-bromoalkyl)phosphonous diamides;A n/a
B 80%
108-38-3

m-xylene

A

74-83-9

methyl bromide

B

121-91-5

isophthalic acid

C

99-04-7

m-Toluic acid

Conditions
ConditionsYield
With anthracene; oxygen; acetic acid; hydrogen bromide; cobalt(II) acetate; manganese(II) acetate In water at 180 - 195℃; under 21446.5 Torr; for 1h; Product distribution / selectivity;A n/a
B 80%
C 0.8%
With oxygen; acetic acid; hydrogen bromide; cobalt(II) acetate; manganese(II) acetate In water at 180 - 195℃; under 21446.5 Torr; for 1h; Product distribution / selectivity;A n/a
B 73%
C 1%
63833-13-6

tris(N-carbomethoxylaminomethyl)phosphine oxide

A

74-83-9

methyl bromide

B

tris(aminomethyl)phosphine oxide trihydrobromide

Conditions
ConditionsYield
With hydrogen bromide for 7h; Heating;A n/a
B 73%
72978-28-0

Diethyl-carbamic acid 2-bromo-ethyl ester

121-45-9

phosphorous acid trimethyl ester

A

74-83-9

methyl bromide

B

2-(dimethoxyphosphinyl)ethyl diethylcarbamate

Conditions
ConditionsYield
A n/a
B 73%
34557-54-5

methane

A

74-83-9

methyl bromide

B

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With bromine at 18 - 500℃; for 0.0166667h; Gas phase;A 70.6%
B 24.7%
With hydrogen bromide; oxygen; Mg/Ru/SiO2 In water at 580℃; Conversion of starting material;
With hydrogen bromide; oxygen; Ba/Bi/Ru/SiO2 In water at 580 - 600℃; Conversion of starting material;
1634-04-4

tert-butyl methyl ether

201230-82-2

carbon monoxide

100-39-0

benzyl bromide

A

74-83-9

methyl bromide

B

507-19-7

t-butyl bromide

C

101-41-7

benzeneacetic acid methyl ester

Conditions
ConditionsYield
1,5-hexadienerhodium(I)-chloride dimer; potassium iodide at 75 - 90℃; under 735.5 Torr; overnight or in n-heptane;A n/a
B n/a
C 68%
82524-20-7

2-bromoethyl N,N-dimethylcarbamate

121-45-9

phosphorous acid trimethyl ester

A

74-83-9

methyl bromide

B

2-(dimethoxyphosphinyl)ethyl dimethylcarbamate

Conditions
ConditionsYield
at 150℃; for 5h;A n/a
B 66%
102149-67-7

{(η5-C5Me5)Os(CO)2Me}

7726-95-6

bromine

A

74-83-9

methyl bromide

B

81554-89-4

{(η5-C5Me5)Os(CO)2Br}

Conditions
ConditionsYield
In dichloromethane-d2 (N2); electrophilic cleavage reaction by addn. of bromine to a soln. of Cp*Os(CO)2Me in CD2Cl2;; not isolated, detected by NMR;;A 53%
B 66%
3279-26-3

methyl dichlorophosphite

81428-21-9

tribromomethyl isocyanate

A

74-83-9

methyl bromide

B

123368-14-9

dichlorophosphoryldibromomethyl isocyanate

Conditions
ConditionsYield
iron(III) chloride at 115℃;A 65%
B 58%
110-83-8

cyclohexene

74-95-3

1,2-dibromomethane

A

74-83-9

methyl bromide

B

74-85-1

ethene

C

286-08-8

bicyclo[4.1.0]heptane

Conditions
ConditionsYield
With zinc In tetrahydrofuran at 40℃; for 48h; Product distribution; other olefins; also in the presence of Zn-Cu and Zn-CuCl; other solvents; var. temp.;A n/a
B n/a
C 64.2%
107087-79-6

{(η5-C5Me5)Os(CO)(PMe2Ph)Me}

7726-95-6

bromine

A

74-83-9

methyl bromide

B

107087-80-9

{(η5-C5Me5)Os(CO)(PMe2Ph)Br}

Conditions
ConditionsYield
In dichloromethane-d2 (N2); electrophilic cleavage reaction by addn. of bromine to a soln. of Cp*Os(CO)(PMe2Ph)Me in CD2Cl2;; not isolated, detected by NMR;;A 21%
B 59%

1,2:5,6-di-O-isopropylidene-3-O-Me3SnCH2-α-D-glucofuranose

7726-95-6

bromine

A

74-83-9

methyl bromide

B

(CH3)2((CH3)2COCH2OCHC4H4OO2C(CH3)2)OCH2SnBr

C

1066-44-0

trimethyltin bromide

D

67-64-1

acetone

Conditions
ConditionsYield
In chloroform-d1 -10 °C, 15 min; not isolated, detected by NMR;A 55%
B 55%
C 45%
D 15%
63833-12-5

tris(N-carbomethoxylaminomethyl)phosphine

A

74-83-9

methyl bromide

B

17919-49-2

bis(hydroxymethyl)methylphosphine oxide

C

69741-88-4

(bromomethyl)(hydroxymethyl)methylphosphine oxide

Conditions
ConditionsYield
With hydrogen bromide at 105 - 110℃; for 3h;A n/a
B 33.8%
C 46.3%
1628-89-3

2-methoxypyridine

14660-52-7

ethyl 5-bromovalerate

A

74-83-9

methyl bromide

B

82360-24-5

ethyl 5-(2-oxopyridin-1(2H)-yl)pentanoate

Conditions
ConditionsYield
at 180℃; adding 4h, then 1h;A n/a
B 44%
611-08-5

5-nitrobarbituric acid

74-83-9

methyl bromide

41613-26-7

1,3-dimethyl-5-nitrouracil

Conditions
ConditionsYield
With sodium hydroxide; tetrabutylammomium bromide In dichloromethane at 20℃; for 24h;100%
74-83-9

methyl bromide

75609-13-1

1,1"-trimethylenebis<4-(4-pyridyl)pyridinium> dibromide

75609-14-2

1',1''-trimethylene-bis(1-methyl-4,4'-bipyridinium) bromide

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 90℃; for 24h;100%
In N,N-dimethyl-formamide at 90℃; Yield given;
74-83-9

methyl bromide

81453-81-8

1,1’-(1,4-butanediyl)bis[4,4'-bipyridinium]bis[bromide]

C26H30N4(4+)*4Br(1-)

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 90℃; for 24h;100%
74-83-9

methyl bromide

1,1''-(1,2-ethanediyl)-bis-4,4'-bipyridinium dibromide

C24H26N4(4+)*4Br(1-)

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 90℃; for 24h;100%
74-83-9

methyl bromide

C25H26N4(2+)*2Br(1-)

C27H32N4(4+)*4Br(1-)

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 90℃; for 24h;100%
74-83-9

methyl bromide

27231-26-1

3-amino-9H-xanthen-9-one

126486-46-2

3-(Dimethylamino)-9H-xanthen-9-on

Conditions
ConditionsYield
With potassium hydroxide; sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride In toluene at 50℃; for 65h;100%
74-83-9

methyl bromide

50-06-6

phenobarbital

730-66-5

1,3-dimethylphenobarbital

Conditions
ConditionsYield
With sodium hydroxide; tetrabutylammomium bromide In dichloromethane at 40℃; for 3h;100%
74-83-9

methyl bromide

66-22-8

uracil

874-14-6

1,3-dimethyluracil

Conditions
ConditionsYield
With sodium hydroxide; tetrabutylammomium bromide In dichloromethane at 40℃; for 3h;100%
74-83-9

methyl bromide

69-89-6

xanthin

58-08-2

3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione

Conditions
ConditionsYield
With solution aqueuse d'hydroxide de sodium; tetrabutylammomium bromide In dichloromethane 1)room temp. 12h 2)reflux 3h;100%
75-15-0

carbon disulfide

74-83-9

methyl bromide

101-92-8

4'-Chloroacetoacetanilide

146140-56-9

2-(bis(methylthio)methylene)-N-(4-chlorophenyl)-3-oxobutanamide

Conditions
ConditionsYield
Stage #1: 4'-Chloroacetoacetanilide With potassium carbonate In N,N-dimethyl-formamide at 0℃; for 0.5h;
Stage #2: carbon disulfide In N,N-dimethyl-formamide at 0℃; for 1h;
Stage #3: methyl bromide In N,N-dimethyl-formamide at 0 - 20℃;
100%
74-83-9

methyl bromide

645-54-5

2-phenylthioacetamide

S-methyl phenylthioacetimidate hydrobromide

Conditions
ConditionsYield
In acetone100%

4-dimethylamino-N,N-dimethyl-nicotinamide

74-83-9

methyl bromide

4-(dimethylamino)-3-(dimethylcarbamoyl)-1-methylpyridinium bromide

Conditions
ConditionsYield
In acetonitrile at 20℃; for 2h;100%
909295-68-7

(4-dimethylamino-pyridin-3-yl)-(2-thioxo-thiazolidin-3-yl)-methanone

74-83-9

methyl bromide

4-dimethylamino-1-methyl-3-(2-thioxo-thiazolidine-3-carbonyl)-pyridinium; bromide

Conditions
ConditionsYield
In acetonitrile at 20℃; for 2h;100%
850796-07-5

(S)-(4-tert-butyl-2-thioxothiazolidin-3-yl)[4-(dimethylamino)pyridin-3-yl]methanone

74-83-9

methyl bromide

(S)-3-[(4-tert-butyl-2-thioxothiazolidin-3-yl)carbonyl]-4-(dimethylamino)-1-methylpyridinium bromide

Conditions
ConditionsYield
In acetonitrile at 20℃; for 2h;100%
74-83-9

methyl bromide

(2,2-dimethyl-oxazolidin-3-yl)pyridin-3-yl-methanone

3-(2,2-dimethyl-oxazolidine-3-carbonyl)-1-methyl-pyridinium bromide

Conditions
ConditionsYield
In acetonitrile at 50℃; for 12h;100%
74-83-9

methyl bromide

447462-02-4

(S)-(4-benzyl-2,2-dimethyl-oxazolidin-3-yl)pyridin-3-yl-methanone

(S)-3-(4-benzyl-2,2-dimethyl-oxazolidine-3-carbonyl)-1-methyl-pyridinium bromide

Conditions
ConditionsYield
In acetonitrile at 50℃; for 12h;100%
855342-04-0

1,4-bis(2-(4-((dimethylamino)butoxyphenyl))-(E)-1-ethenyl)benzene

74-83-9

methyl bromide

1,4-bis(2-(4-((trimethylammonium)butoxyphenyl))-(E)-1-ethenyl)benzene dibromide

Conditions
ConditionsYield
In tetrahydrofuran at 20℃;100%
In tetrahydrofuran; tert-butyl methyl ether at 20℃;100%
74-83-9

methyl bromide

956486-48-9

C47H39F6N9O4

Br(1-)*C48H42F6N9O4(1+)

Conditions
ConditionsYield
In acetonitrile at 80℃; for 24h;100%
In acetonitrile at 80℃; for 24h;100%
74-83-9

methyl bromide

N,N,N',N'-tetramethyl-2,3-dibromo-2-butene-1,4-diamine

C10H22Br2N2(2+)*2Br(1-)

Conditions
ConditionsYield
for 48h;100%
74-83-9

methyl bromide

N-[(6-fluoro-3'-{[(3S)-3-methyl-1-piperazinyl]methyl}-3-biphenylyl)methyl]-N-methyl-3-(4-piperidinylmethyl)benzamide

Conditions
ConditionsYield
Stage #1: 1,1-dimethylethyl (2S)-4-[(5'-{[({3-[(1-{[(1,1-dimethylethyl)oxy]carbonyl}-4-piperidinyl)methyl]phenyl}carbonyl)amino]methyl}-2'-fluoro-3-biphenylyl)methyl]-2-methyl-1-piperazinecarboxylate With sodium hydride In N,N-dimethyl-formamide at 0℃; for 0.25h;
Stage #2: methyl bromide In diethyl ether; N,N-dimethyl-formamide at 20℃; for 12h;
Stage #3: With hydrogenchloride; sodium hydroxide more than 3 stages;
100%
74-83-9

methyl bromide

N-[(3'-{[(3S)-3,4-dimethyl-1-piperazinyl]methyl}-6-fluoro-3-biphenylyl)methyl]-3-[(1-methyl-4-piperidinyl)methyl]benzamide

(2S)-4-[(5'-{[({3-[(1,1-dimethyl-4-piperidiniumyl)methyl]phenyl}carbonyl)amino]methyl}-2'-fluoro-3-biphenylyl)methyl]-1,1.2-trimethylpiperazin-1-ium dibromide

Conditions
ConditionsYield
In 2,2'-oxybis(2-methyl-propane); acetone at 20℃; for 16h;100%
74-83-9

methyl bromide

594-27-4

tetramethylstannane

Conditions
ConditionsYield
With {(C2H5)4N}Br In acetonitrile Electrolysis; Sn-cathode, 50°C;100%
With {(C2H5)4N}Br In acetonitrile Electrolysis; Sn-cathode, 50°C;100%
In water; acetonitrile Electrolysis; Sn-cathode, Pt-anode, 0.25 M Et4NClO4 in MeCN/water=7:1, 25°C, 10mA/cm**(-2); gas chromy.;
74-83-9

methyl bromide

(R)-cyclohexyl-(5-dimethylaminomethyl-oxazol-2-yl)-phenyl-methanol

1049636-90-9

[2-((S)-cyclohexyl-hydroxy-phenyl-methyl)-oxazol-5-ylmethyl]-trimethyl-ammonium bromide

Conditions
ConditionsYield
In tetrahydrofuran; chloroform at 50℃; for 24h;100%
74-83-9

methyl bromide

1150267-69-8

C54H51F6N9O6

1150267-71-2

Br(1-)*C55H54F6N9O6(1+)

Conditions
ConditionsYield
With sodium hydrogencarbonate In acetonitrile at 20℃; for 24h;100%
With sodium hydrogencarbonate In acetonitrile at 20℃; for 24h;100%
74-83-9

methyl bromide

C56H44F6N10O7

1151655-50-3

Br(1-)*C57H47F6N10O7(1+)

Conditions
ConditionsYield
at 50℃; for 168h;100%
74-83-9

methyl bromide

1151655-29-6

C58H56F6N10O7

1152178-87-4

Br(1-)*C59H59F6N10O7(1+)

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetonitrile at 20℃; for 24h;100%
74-83-9

methyl bromide

3-[(tert-butyldimethylsilyl)oxy]-17-(cyclopropylmethyl)-4,5a-epoxy-14-hydroxyl-6-(1,3-dioxolan-2-yl)morphinan

3-[(tert-butyldimethylsilyl)oxy]-17-(cyclopropylmethyl)-4,5a-epoxy-14-hydroxyl-6-(1,3-dioxolan-2-yl)-N-methylmorphinan bromide

Conditions
ConditionsYield
In 1-methyl-pyrrolidin-2-one at 55 - 60℃; Cooling with ice;100%
74-83-9

methyl bromide

1333000-79-5

5-(4-cyanophenyl)-2,7-dimethyl-3-oxo-8-(3-trifluoromethyl phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid 2-dimethylaminoethyl ester

1333000-80-8

{2-[5-(4-cyanophenyl)-2,7-dimethyl-3-oxo-8-(3-trifluoromethylphenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carbonyloxy]ethyl}trimethylammonium bromide

Conditions
ConditionsYield
In acetonitrile at 20℃;100%
In acetonitrile at 20℃;100%
74-83-9

methyl bromide

[(iPrPNP)Rh(COE)][BF4]

[(iPrPNP)Rh(CH3)Br][BF4]

Conditions
ConditionsYield
In acetone for 12h; Inert atmosphere; Schlenk technique; Glovebox;100%
74-83-9

methyl bromide

[(2,6-bis-(di-tert-butylphosphinomethyl)pyridine)Rh(acetone)][BF4]

[(2,6-bis-(di-tert-butylphosphinomethyl)pyridine)Rh(CH3)Br][BF4]

Conditions
ConditionsYield
for 12h; Inert atmosphere; Schlenk technique; Glovebox;100%
for 12h; Inert atmosphere; Schlenk technique; Glovebox;100%
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  • Methyl bromide

  • Casno:

    74-83-9

    Methyl bromide

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  • 74-83-9 Methyl bromide

  • Casno:

    74-83-9

    74-83-9 Methyl bromide

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 2.0-2.0/Kilogram

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    Business Type:Lab/Research institutions

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    Address:Zhengzhou International Trade New Territory,Jinshui District,Zhengzhou ,China

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    Business Type:Lab/Research institutions

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    Business Type:Lab/Research institutions

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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.