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Index of Chemical Names, Synonyms and Trade Names: M

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Note: An asterisk (*) indicates a primary chemical name.

CHEMICAL NAME CAS No. RTECS No.
α-Methacrylic acid79-41-4OZ2975000
α-Methylacrylonitrile126-98-7UD1400000
β-Methyl acrolein4170-30-3GP9499000
β-Methylpropyl ethanoate110-19-0AI4025000
(Methylamino)benzene100-61-8BY4550000
1-Mercaptobutane109-79-5EK6300000
1-Mercaptodecane143-10-2
1-Mercaptododecane112-55-0JR3155000
1-Mercaptononane1455-21-6
1-Mercaptooctadecane2885-00-9
1-Mercaptooctane111-88-6
1-Methoxy-2-hydroxypropane107-98-2UB7700000
1-Methoxy-2-propanol107-98-2UB7700000
1-Methyl-1-phenylethylene98-83-9WL5075300
1-Methyl-2,4,6-trinitrobenzene118-96-7XU0175000
1-Methyl-2-aminobenzene95-53-4XU2975000
1-Methyl-4-tert-butylbenzene98-51-1XS8400000
1-Methylbutyl acetate626-38-0AJ2100000
1-Methylethyl ester of acetic acid108-21-4AI4930000
1-Methylpropyl acetate105-46-4AF7380000
2-(1-Methylpropyl)phenol89-72-5SJ8920000
2,2-bis(p-Methoxyphenyl)-1,1,1-trichloroethane72-43-5KJ3675000
2-Mercaptoacetic acid68-11-1AI5950000
2-Methoxy-1-methylethanol107-98-2UB7700000
2-Methoxyethanol109-86-4KL5775000
2-Methoxyethyl acetate110-49-6KL5950000
2-Methyl phenol95-48-7GO6300000
2-Methyl-1-propanol78-83-1NP9625000
2-Methyl-2,4-pentanediol107-41-5SA0810000
2-Methyl-2-pentanol-4-one123-42-2SA9100000
2-Methyl-2-propanol75-65-0EO1925000
2-Methyl-3,5-dinitrobenzamide148-01-6XS4200000
2-Methyl-5-hexanone110-12-3MP3850000
2-Methylacrylic acid79-41-4OZ2975000
2-Methylaniline95-53-4XU2975000
2-Methylaziridine75-55-8CM8050000
2-Methylcyclohexanone583-60-8GW1750000
2-Methylcyclopentadienyl manganese tricarbonyl12108-13-3OP1450000
2-Methylethyleneimine75-55-8CM8050000
2-Methyllactonitrile75-86-5OD9275000
2-Methylnitrobenzene88-72-2XT3150000
2-Methylpentane
2-Methylpentane-2,4-diol107-41-5SA0810000
2-Methylpropane75-28-5TZ4300000
2-Methylpropanenitrile78-82-0TZ4900000
2-Methylpropenenitrile126-98-7UD1400000
2-Methylpropenoic acid79-41-4OZ2975000
2-Methylpropionitrile78-82-0TZ4900000
2-Methylpropyl acetate110-19-0AI4025000
2-Methylpropyl ester of acetic acid110-19-0AI4025000
3-(1-Methyl-2-pyrrolidyl)pyridine54-11-5QS5250000
3-Mercaptopropane107-03-9TZ7300000
3-Methyl butan-2-one563-80-4EL9100000
3-Methyl phenol108-39-4GO6125000
3-Methyl-1-butanol123-51-3EL5425000
3-Methyl-1-butanol acetate123-92-2NS9800000
3-Methyl-2-butanol6032-29-7SA4900000
3-Methyl-2-butanone563-80-4EL9100000
3-Methyl-5-heptanone541-85-5MJ7350000
3-Methylaniline108-44-1XU2800000
3-Methylbenzenamine108-44-1XU2800000
3-Methylbutyl ester of acetic acid123-92-2NS9800000
3-Methylbutyl ethanoate123-92-2NS9800000
3-Methylnitrobenzene99-08-1XT2975000
3-Methylpentane
4,4'-Methylenebis(2-chloroaniline) *101-14-4CY1050000
4,4'-Methylenebis(2-chlorobenzenamine)101-14-4CY1050000
4,4'-Methylenebis(o-chloro aniline)101-14-4CY1050000
4,4'-Methylenedianiline *101-77-9BY5425000
4-Methoxy-1,3-benzene-diamine615-05-4BZ8580500
4-Methoxy-m-phenylene-diamine615-05-4BZ8580500
4-Methoxyphenol *150-76-5SL7700000
4-Methyl 2-pentanone108-10-1SA9275000
4-Methyl phenol106-44-5GO6475000
4-Methyl-2,4-pentanediol107-41-5SA0810000
4-Methyl-2,6-di-tert-butyl phenol128-37-0GO7875000
4-Methyl-2-pentanol108-11-2SA7350000
4-Methyl-3-penten-2-one141-79-7SB4200000
4-Methylaniline106-49-0XU3150000
4-Methylbenzenamine106-49-0XU3150000
4-Methylnitrobenzene99-99-0XT3325000
5-Methyl-2-hexanone110-12-3MP3850000
5-Methyl-3-heptanone *541-85-5MJ7350000
MA100-61-8BY4550000
Mace®532-27-4AM6300000
Magnesia fume1309-48-4OM3850000
Magnesite *546-93-0OM2470000
Magnesium carbonate546-93-0OM2470000
Magnesium oxide fume *1309-48-4OM3850000
Magnesium(II) carbonate546-93-0OM2470000
Malathion *121-75-5WM8400000
Maleic acid anhydride108-31-6ON3675000
Maleic anhydride *108-31-6ON3675000
Malonaldehyde *542-78-9TX6475000
Malonic aldehyde542-78-9TX6475000
Malonic dinitrile109-77-3OO3150000
Malonodialdehyde542-78-9TX6475000
Malononitrile *109-77-3OO3150000
Manganese compounds and fume (as Mn) *7439-96-5 (metal)OO9275000 (metal)
Manganese cyclopentadienyl tricarbonyl (as Mn) *12079-65-1OO9720000
Manganese metal7439-96-5 (metal)OO9275000 (metal)
Manganese oxide1317-35-7OP0895000
Manganese tetroxide (as Mn) *1317-35-7OP0895000
Manganese tricarbonylmethylcyclopentadienyl12108-13-3OP1450000
Manganese-557439-96-5 (metal)OO9275000 (metal)
Manganomanganic oxide1317-35-7OP0895000
Manmade mineral fibersPY8070000
MAPP gas59355-75-8UK4920000
Marble *1317-65-3EV9580000
Margarite12001-26-2VV8760000
Massive talcVV8780000
MBK591-78-6MP1400000
MBOCA101-14-4CY1050000
MCB108-90-7CZ0175000
MCT12079-65-1OO9720000
MDA101-77-9BY5425000
MDI101-68-8NQ9350000
Mecrylate137-05-3AS7000000
MEK78-93-3EL6475000
MEK peroxide1338-23-4EL9450000
MEKP1338-23-4EL9450000
Mequinol150-76-5SL7700000
Mercaptoacetate68-11-1AI5950000
Mercaptoacetic acid68-11-1AI5950000
Mercaptobenzene108-98-5DC0525000
Mercaptoethane75-08-1KI9625000
Mercaptomethane74-93-1PB4375000
Mercury (organo) alkyl compounds (as Hg) *
Mercury compounds [except (organo) alkyls] (as Hg) *7439-97-6 (metal)OV4550000 (metal)
Mercury metal7439-97-6 (metal)OV4550000 (metal)
Mesityl oxide *141-79-7SB4200000
Mesitylene108-67-8OX6825000
Metacetone96-22-0SA8050000
Metacetonic acid79-09-4UE5950000
Metallic mercury7439-97-6 (metal)OV4550000 (metal)
Metallic tin7440-31-5XP7320000
Metallum problematum13494-80-9WY2625000
Metasystox®8022-00-2TG1760000
Methacrylate monomer80-62-6OZ5075000
Methacrylic acid *79-41-4OZ2975000
Methacrylic acid (glacial)79-41-4OZ2975000
Methacrylic acid (inhibited)79-41-4OZ2975000
Methacrylonitrile126-98-7UD1400000
Methanal50-00-0LP8925000
Methanamide75-12-7LQ0525000
Methane tetrabromide558-13-4FG4725000
Methane tetramethylol115-77-5RZ2490000
Methane trichloride67-66-3FS9100000
Methanecarboxylic acid64-19-7AF1225000
Methanethiol74-93-1PB4375000
Methanoic acid64-18-6LQ4900000
Methanol67-56-1PC1400000
Methoflurane76-38-0KN7820000
Methomyl *16752-77-5AK2975000
Methoxycarbonylethylene96-33-3AT2800000
Methoxychlor *72-43-5KJ3675000
Methoxy-DDT72-43-5KJ3675000
Methoxyfluorane76-38-0KN7820000
Methoxyflurane *76-38-0KN7820000
Methoxymethyl methyl ether109-87-5PA8750000
Methyl α-cyanoacrylate137-05-3AS7000000
Methyl (n-amyl) ketone *110-43-0MJ5075000
Methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate17804-35-2DD6475000
Methyl acetate *79-20-9AI9100000
Methyl acetic acid79-09-4UE5950000
Methyl acetone78-93-3EL6475000
Methyl acetylene *74-99-7UK4250000
Methyl acetylene-allene mixture59355-75-8UK4920000
Methyl acetylene-propadiene mixture *59355-75-8UK4920000
Methyl acetylene-propadiene mixture (stabilized)59355-75-8UK4920000
Methyl acrylate *96-33-3AT2800000
Methyl alcohol *67-56-1PC1400000
Methyl aldehyde50-00-0LP8925000
Methyl amyl alcohol108-11-2SA7350000
Methyl azinphos86-50-0TE1925000
Methyl benzene108-88-3XS5250000
Methyl benzol108-88-3XS5250000
Methyl bromide *74-83-9PA4900000
Methyl butyl ketone591-78-6MP1400000
Methyl Cellosolve® *109-86-4KL5775000
Methyl Cellosolve® acetate *110-49-6KL5950000
Methyl chloride *74-87-3PA6300000
Methyl chlorobromide74-97-5PA5250000
Methyl chloroform *71-55-6KJ2975000
Methyl cyanide75-05-8AL7700000
Methyl cyanoacrylate137-05-3AS7000000
Methyl cyclopentadienyl manganese tricarbonyl (as Mn) *12108-13-3OP1450000
Methyl demeton *8022-00-2TG1760000
Methyl ester of 2-cyanoacrylic acid137-05-3AS7000000
Methyl ester of acetic acid79-20-9AI9100000
Methyl ester of acrylic acid96-33-3AT2800000
Methyl ester of formic acid107-31-3LQ8925000
Methyl ester of isocyanic acid624-83-9NQ9450000
Methyl ester of methacrylic acid80-62-6OZ5075000
Methyl ethanoate79-20-9AI9100000
Methyl ethyl carbinol78-92-2EO1750000
Methyl ethyl ketone78-93-3EL6475000
Methyl ethyl ketone hydroperoxide1338-23-4EL9450000
Methyl ethyl ketone peroxide *1338-23-4EL9450000
Methyl ethylene oxide75-56-9TZ2975000
Methyl formate *107-31-3LQ8925000
Methyl hydrazine *60-34-4MV5600000
Methyl iodide *74-88-4PA9450000
Methyl isoamyl ketone *110-12-3MP3850000
Methyl isobutenyl ketone141-79-7SB4200000
Methyl isobutyl carbinol *108-11-2SA7350000
Methyl isobutyl ketone108-10-1SA9275000
Methyl isocyanate *624-83-9NQ9450000
Methyl isopropyl ketone *563-80-4EL9100000
Methyl mercaptan *74-93-1PB4375000
Methyl mercaptophos8022-00-2TG1760000
Methyl methacrylate *80-62-6OZ5075000
Methyl methanoate107-31-3LQ8925000
Methyl N-((methylamino)carbonyl)oxy)ethanimidothioate16752-77-5AK2975000
Methyl n-butyl ketone591-78-6MP1400000
Methyl orthosilicate681-84-5VV9800000
Methyl parathion *298-00-0TG0175000
Methyl phosphite121-45-9TH1400000
Methyl propenoate96-33-3AT2800000
Methyl propyl ketone107-87-9SA7875000
Methyl silicate *681-84-5VV9800000
Methyl sulfate77-78-1WS8225000
Methyl sulfhydrate74-93-1PB4375000
Methyl systox®8022-00-2TG1760000
Methyl tribromide75-25-2PB5600000
Methyl yellow60-11-7BX7350000
Methyl-2-cyanoacrylate *137-05-3AS7000000
Methyl-2-methyl-2-propenoate80-62-6OZ5075000
Methylacrylonitrile *126-98-7UD1400000
Methylal *109-87-5PA8750000
Methylamine *74-89-5PF6300000
Methylamine (anhydrous)74-89-5PF6300000
Methylamine (aqueous)74-89-5PF6300000
Methylchloromethyl ether107-30-2KN6650000
Methylcyclohexane *108-87-2GV6125000
Methylcyclohexanol *25639-42-3GW0175000
Methyldinitrobenzene25321-14-6XT1300000
Methylene bis(4-cyclohexylisocyanate) *5124-30-1NQ9250000
Methylene bis(4-phenyl isocyanate)101-68-8NQ9350000
Methylene bisphenyl isocyanate *101-68-8NQ9350000
Methylene chloride *75-09-2PA8050000
Methylene dichloride75-09-2PA8050000
Methylene dimethyl ether109-87-5PA8750000
Methylene di-p-phenylene ester of isocyanic acid101-68-8NQ9350000
Methylene oxide50-00-0LP8925000
Methylethylmethane106-97-8EJ4200000
Methylisoamyl acetate108-84-9SA7525000
Methyloxirane75-56-9TZ2975000
Methylphenylamine100-61-8BY4550000
Methylphenylene diamine25376-45-8
95-80-7 (2,4-TDA)		XS9445000,XS9625000 (2,4-TDA)
Methylstyrene25013-15-4 (inhibited)WL5075000
Metribuzin *21087-64-9XZ2990000
Mevinphos7786-34-7GQ5250000
MIAK110-12-3MP3850000
MIBC108-11-2SA7350000
MIBK108-10-1SA9275000
MIC624-83-9NQ9450000
Mica (containing less than 1% quartz) *12001-26-2VV8760000
Mineral carbon7782-42-5MD9659600
Mineral spirits8052-41-3WJ8925000
Mineral white13397-24-5MG2360000
Mineral wool fiber *PY8070000
MIPK563-80-4EL9100000
m-Methylnitrobenzene99-08-1XT2975000
MMH60-34-4MV5600000
MMT12108-13-3OP1450000
MOCA101-14-4CY1050000
Molecular bromine7726-95-6EF9100000
Molecular chlorine7782-50-5FO2100000
Molecular iodine7553-56-2NN1575000
Molybdenum *7439-98-7QA4680000
Molybdenum (soluble compounds, as Mo) *
Molybdenum metal7439-98-7QA4680000
Monoammonium salt of sulfamic acid7773-06-0WO6125000
Monobromoethane74-96-4KH6475000
Monobromoethylene593-60-2KU8400000
Monobromomethane74-83-9PA4900000
Monobromotrifluoromethane75-63-8PA5425000
Monochloroacetyl chloride79-04-9AO6475000
Monochlorobenzene108-90-7CZ0175000
Monochlorodifluoromethane75-45-6PA6390000
Monochloroethane75-00-3KH7525000
Monochloroethene75-01-4KU9625000
Monochloroethylene75-01-4KU9625000
Monochloromethane74-87-3PA6300000
Monochloropentafluoroethane76-15-3KH7877500
Monocron6923-22-4TC4375000
Monocrotophos *6923-22-4TC4375000
Monoethanolamine141-43-5KJ5775000
Monoethylamine75-04-7KH2100000
Monoethylene glycol107-21-1KW2975000
Monofluoroethylene75-02-5YZ7351000
Monofluorotrichloromethane75-69-4PB6125000
Monogermane7782-65-2LY4900000
Monohydroxybenzene108-95-2SJ3325000
Monoiodomethane74-88-4PA9450000
Monoisopropylamine75-31-0NT8400000
Monomethyl aniline *100-61-8BY4550000
Monomethyl ether hydroquinone150-76-5SL7700000
Monomethylamine74-89-5PF6300000
Monomethylhydrazine60-34-4MV5600000
Mononitrogen monoxide10102-43-9QX0525000
Monopentaerythritol115-77-5RZ2490000
Monophenylhydrazine100-63-0MV8925000
Monosilane7803-62-5VV1400000
Monosodium salt of sulfurous acid7631-90-5VZ2000000
Monoxide630-08-0FG3500000
Morpholine *110-91-8QD6475000
Motor fuel8006-61-9LX3300000
Motor spirits8006-61-9LX3300000
MPK107-87-9SA7875000
Muriatic ether75-00-3KH7525000
Muscovite12001-26-2VV8760000
MXDA1477-55-0PF8970000
N-(1-Methylethyl)-2-propanamine108-18-9IM4025000
N-(1-Methylethyl)-benzenamine768-52-5BY4190000
N-Methyl aniline100-61-8BY4550000
N-Methyl-2-isopropoxyphenyl-carbamate114-26-1FC3150000
N-Methylmethanamine124-40-3IP8750000
N-Methyl-N,2,4,6-tetranitroaniline479-45-8BY6300000
N-Methyl-N-nitroso-methanamine62-75-9IQ0525000
o-Methoxyaniline90-04-0BZ5410000
o-Methylaniline95-53-4XU2975000
o-Methylcyclohexanone *583-60-8GW1750000
o-Methylnitrobenzene88-72-2XT3150000
p-Methoxyaniline104-94-9BZ5450000
p-Methoxyphenol150-76-5SL7700000
p-Methylnitrobenzene99-99-0XT3325000
S-Methyl-N-(methylcarbamoyloxy)thioacetimidate16752-77-5AK2975000
a-Methyl styrene *98-83-9WL5075300
Page last reviewed: October 17, 2018
Content source: National Institute for Occupational Safety and Health