NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

INDEX of Chemical Names, Synonyms and Trade Names

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M

SEQ CHEMICAL NAME CAS No. RTECS No.
0436 MA 100-61-8 BY4550000
0119 Mace® 532-27-4 AM6300000
0374 Magnesia fume 1309-48-4 OM3850000
0373* Magnesite 546-93-0 OM2470000
0373 Magnesium carbonate 546-93-0 OM2470000
0373 Magnesium(II) carbonate 546-93-0 OM2470000
0374* Magnesium oxide fume 1309-48-4 OM3850000
0375* Malathion 121-75-5 WM8400000
0376 Maleic acid anhydride 108-31-6 ON3675000
0376* Maleic anhydride 108-31-6 ON3675000
0377* Malonaldehyde 542-78-9 TX6475000
0377 Malonic aldehyde 542-78-9 TX6475000
0378 Malonic dinitrile 109-77-3 OO3150000
0377 Malonodialdehyde 542-78-9 TX6475000
0378* Malononitrile 109-77-3 OO3150000
0379 Manganese-55 7439-96-5 OO9275000
0379* Manganese compounds and fume (as Mn) 7439-96-5 OO9275000
0380* Manganese cyclopentadienyl tricarbonyl (as Mn) 12079-65-1 OO9720000
0379 Manganese metal: Colloidal manganese 7439-96-5 OO9275000
0381 Manganese oxide 1317-35-7 OP0895000
0381* Manganese tetroxide (as Mn) 1317-35-7 OP0895000
0409 Manganese tricarbonylmethylcyclopentadienyl 12108-13-3 OP1450000
0381 Manganomanganic oxide 1317-35-7 OP0895000
0432 Manmade mineral fibers   PY8070000
0393 MAPP gas 59355-75-8 UK4920000
0382* Marble 1317-65-3 EV9580000
0431 Margarite 12001-26-2 VV8760000
0558 Massive talc   VV8780000
0325 MBK 591-78-6 MP1400000
0411 MBOCA 101-14-4 CY1050000
0121 MCB 108-90-7 CZ0175000
0380 MCT 12079-65-1 OO9720000
0415 MDA 101-77-9 BY5425000
0413 MDI 101-68-8 NQ9350000
0405 Mecrylate 137-05-3 AS7000000
0069 MEK 78-93-3 EL6475000
0416 MEKP 1338-23-4 EL9450000
0416 MEK peroxide 1338-23-4 EL9450000
0390 Mequinol 150-76-5 SL7700000
0610 Mercaptoacetate 68-11-1 AI5950000
0610 2-Mercaptoacetic acid 68-11-1 AI5950000
0610 Mercaptoacetic acid 68-11-1 AI5950000
0050 Mercaptobenzene 108-98-5 DC0525000
0083 1-Mercaptobutane 109-79-5 EK6300000
0176 1-Mercaptodecane 143-10-2  
0249 1-Mercaptododecane 112-55-0 JR3155000
0280 Mercaptoethane 75-08-1 KI9625000
0425 Mercaptomethane 74-93-1 PB4375000
0467 1-Mercaptononane 1455-21-6  
0469 1-Mercaptooctadecane 2885-00-9  
0471 1-Mercaptooctane 111-88-6  
0526 3-Mercaptopropane 107-03-9 TZ7300000
0383* Mercury compounds [except (organo) alkyls] (as Hg) 7439-97-6 OV4550000
0383 Mercury metal: Colloidal mercury 7439-97-6 OV4550000
0384* Mercury (organo) alkyl compounds (as Hg)    
0639 Mesitylene 108-67-8 OX6825000
0385* Mesityl oxide 141-79-7 SB4200000
0212 Metacetone 96-22-0 SA8050000
0529 Metacetonic acid 79-09-4 UE5950000
0383 Metallic mercury 7439-97-6 OV4550000
0613 Metallic tin 7440-31-5 XP7320000
0587 Metallum problematum 13494-80-9 WY2625000
0410 Metasystox® 8022-00-2 TG1760000
0426 Methacrylate monomer 80-62-6 OZ5075000
0386 alpha-Methacrylic acid 79-41-4 OZ2975000
0386* Methacrylic acid 79-41-4 OZ2975000
0386 Methacrylic acid (glacial) 79-41-4 OZ2975000
0386 Methacrylic acid (inhibited) 79-41-4 OZ2975000
0395 Methacrylonitrile 126-98-7 UD1400000
0293 Methanal 50-00-0 LP8925000
0295 Methanamide 75-12-7 LQ0525000
0002 Methanecarboxylic acid 64-19-7 AF1225000
0106 Methane tetrabromide 558-13-4 FG4725000
0485 Methane tetramethylol 115-77-5 RZ2490000
0425 Methanethiol 74-93-1 PB4375000
0127 Methane trichloride 67-66-3 FS9100000
0296 Methanoic acid 64-18-6 LQ4900000
0397 Methanol 67-56-1 PC1400000
0389 Methoflurane 76-38-0 KN7820000
0387* Methomyl 16752-77-5 AK2975000
0034 o-Methoxyaniline 90-04-0 BZ5410000
0035 p-Methoxyaniline 104-94-9 BZ5450000
0179 4-Methoxy-1, 3-benzene-diamine 615-05-4 BZ8580500
0394 Methoxycarbonylethylene 96-33-3 AT2800000
0388* Methoxychlor 72-43-5 KJ3675000
0388 Methoxy-DDT 72-43-5 KJ3675000
0401 2-Methoxyethanol 109-86-4 KL5775000
0402 2-Methoxyethyl acetate 110-49-6 KL5950000
0389 Methoxyfluorane 76-38-0 KN7820000
0389* Methoxyflurane 76-38-0 KN7820000
0536 1-Methoxy-2-hydroxypropane 107-98-2 UB7700000
0536 2-Methoxy-1-methylethanol 107-98-2 UB7700000
0396 Methoxymethyl methyl ether 109-87-5 PA8750000
0390* 4-Methoxyphenol 150-76-5 SL7700000
0390 p-Methoxyphenol 150-76-5 SL7700000
0179 4-Methoxy-m-phenylene-diamine 615-05-4 BZ8580500
0388 2, 2-bis(p-Methoxyphenyl) -1, 1, 1-trichloroethane 72-43-5 KJ3675000
0536 1-Methoxy-2-propanol 107-98-2 UB7700000
0391* Methyl acetate 79-20-9 AI9100000
0529 Methyl acetic acid 79-09-4 UE5950000
0069 Methyl acetone 78-93-3 EL6475000
0392* Methyl acetylene 74-99-7 UK4250000
0393 Methyl acetylene-allene mixture 59355-75-8 UK4920000
0393 Methyl acetylene-propadiene mixture (stabilized) 59355-75-8 UK4920000
0393* Methyl acetylene-propadiene mixture 59355-75-8 UK4920000
0157 beta-Methyl acrolein 4170-30-3 GP9499000
0394* Methyl acrylate 96-33-3 AT2800000
0386 2-Methylacrylic acid 79-41-4 OZ2975000
0395 alpha-Methylacrylonitrile 126-98-7 UD1400000
0395* Methylacrylonitrile 126-98-7 UD1400000
0396* Methylal 109-87-5 PA8750000
0397* Methyl alcohol 67-56-1 PC1400000
0293 Methyl aldehyde 50-00-0 LP8925000
0398* Methylamine 74-89-5 PF6300000
0398 Methylamine (anhydrous) 74-89-5 PF6300000
0398 Methylamine (aqueous) 74-89-5 PF6300000
0622 1-Methyl-2-aminobenzene 95-53-4 XU2975000
0436 (Methylamino) benzene 100-61-8 BY4550000
0422 Methyl amyl alcohol 108-11-2 SA7350000
0622 2-Methylaniline 95-53-4 XU2975000
0623 3-Methylaniline 108-44-1 XU2800000
0624 4-Methylaniline 106-49-0 XU3150000
0436 N-Methyl aniline 100-61-8 BY4550000
0622 o-Methylaniline 95-53-4 XU2975000
0044 Methyl azinphos 86-50-0 TE1925000
0537 2-Methylaziridine 75-55-8 CM8050000
0623 3-Methylbenzenamine 108-44-1 XU2800000
0624 4-Methylbenzenamine 106-49-0 XU3150000
0619 Methyl benzene 108-88-3 XS5250000
0619 Methyl benzol 108-88-3 XS5250000
0400* Methyl bromide 74-83-9 PA4900000
0348 3-Methyl-1-butanol 123-51-3 EL5425000
0349 3-Methyl-2-butanol 6032-29-7 SA4900000
0347 3-Methyl-1-butanol acetate 123-92-2 NS9800000
0424 3-Methyl-2-butanone 563-80-4 EL9100000
0424 3-Methyl butan-2-one 563-80-4 EL9100000
0032 1-Methylbutyl acetate 626-38-0 AJ2100000
0085 1-Methyl-4-tert-butylbenzene 98-51-1 XS8400000
0048 Methyl 1-(butylcarbamoyl) -2-benzimidazolecarbamate 17804-35-2 DD6475000
0347 3-Methylbutyl ester of acetic acid 123-92-2 NS9800000
0347 3-Methylbutyl ethanoate 123-92-2 NS9800000
0325 Methyl butyl ketone 591-78-6 MP1400000
0401* Methyl Cellosolve® 109-86-4 KL5775000
0402* Methyl Cellosolve® acetate 110-49-6 KL5950000
0403* Methyl chloride 74-87-3 PA6300000
0123 Methyl chlorobromide 74-97-5 PA5250000
0404* Methyl chloroform 71-55-6 KJ2975000
0129 Methylchloromethyl ether 107-30-2 KN6650000
0006 Methyl cyanide 75-05-8 AL7700000
0405* Methyl-2-cyanoacrylate 137-05-3 AS7000000
0405 Methyl alpha-cyanoacrylate 137-05-3 AS7000000
0405 Methyl cyanoacrylate 137-05-3 AS7000000
0406* Methylcyclohexane 108-87-2 GV6125000
0407* Methylcyclohexanol 25639-42-3 GW0175000
0408 2-Methylcyclohexanone 583-60-8 GW1750000
0408* o-Methylcyclohexanone 583-60-8 GW1750000
0409 2-Methylcyclopentadienyl manganese tricarbonyl 12108-13-3 OP1450000
0409* Methyl cyclopentadienyl manganese tricarbonyl (as Mn) 12108-13-3 OP1450000
0410* Methyl demeton 8022-00-2 TG1760000
0246 4-Methyl-2, 6-di-tert-butyl phenol 128-37-0 GO7875000
0230 2-Methyl-3, 5-dinitrobenzamide 148-01-6 XS4200000
0235 Methyldinitrobenzene 25321-14-6 XT1300000
0413* Methylene bisphenyl isocyanate 101-68-8 NQ9350000
0414* Methylene chloride 75-09-2 PA8050000
0411* 4, 4'-Methylenebis(2-chloroaniline) 101-14-4 CY1050000
0411 4, 4'-Methylenebis(2-chlorobenzenamine) 101-14-4 CY1050000
0412* Methylene bis(4-cyclohexylisocyanate) 5124-30-1 NQ9250000
0415* 4, 4'-Methylenedianiline 101-77-9 BY5425000
0414 Methylene dichloride 75-09-2 PA8050000
0396 Methylene dimethyl ether 109-87-5 PA8750000
0413 Methylene di-p-phenylene ester of isocyanic acid 101-68-8 NQ9350000
0411 4, 4'-Methylenebis(o-chloro aniline) 101-14-4 CY1050000
0293 Methylene oxide 50-00-0 LP8925000
0413 Methylene bis(4-phenyl isocyanate) 101-68-8 NQ9350000
0391 Methyl ester of acetic acid 79-20-9 AI9100000
0394 Methyl ester of acrylic acid 96-33-3 AT2800000
0405 Methyl ester of 2-cyanoacrylic acid 137-05-3 AS7000000
0417 Methyl ester of formic acid 107-31-3 LQ8925000
0423 Methyl ester of isocyanic acid 624-83-9 NQ9450000
0426 Methyl ester of methacrylic acid 80-62-6 OZ5075000
0391 Methyl ethanoate 79-20-9 AI9100000
0361 N-(1-Methylethyl) -benzenamine 768-52-5 BY4190000
0077 Methyl ethyl carbinol 78-92-2 EO1750000
0537 2-Methylethyleneimine 75-55-8 CM8050000
0538 Methyl ethylene oxide 75-56-9 TZ2975000
0358 1-Methylethyl ester of acetic acid 108-21-4 AI4930000
0069 Methyl ethyl ketone 78-93-3 EL6475000
0416 Methyl ethyl ketone hydroperoxide 1338-23-4 EL9450000
0416* Methyl ethyl ketone peroxide 1338-23-4 EL9450000
0068 Methylethylmethane 106-97-8 EJ4200000
0217 N-(1-Methylethyl) -2-propanamine 108-18-9 IM4025000
0417* Methyl formate 107-31-3 LQ8925000
0418 3-Methyl-5-heptanone 541-85-5 MJ7350000
0418* 5-Methyl-3-heptanone 541-85-5 MJ7350000
0421 2-Methyl-5-hexanone 110-12-3 MP3850000
0421 5-Methyl-2-hexanone 110-12-3 MP3850000
0419* Methyl hydrazine 60-34-4 MV5600000
0420* Methyl iodide 74-88-4 PA9450000
0327 Methylisoamyl acetate 108-84-9 SA7525000
0421* Methyl isoamyl ketone 110-12-3 MP3850000
0385 Methyl isobutenyl ketone 141-79-7 SB4200000
0422* Methyl isobutyl carbinol 108-11-2 SA7350000
0326 Methyl isobutyl ketone 108-10-1 SA9275000
0423* Methyl isocyanate 624-83-9 NQ9450000
0531 N-Methyl-2-isopropoxyphenyl-carbamate 114-26-1 FC3150000
0424* Methyl isopropyl ketone 563-80-4 EL9100000
0005 2-Methyllactonitrile 75-86-5 OD9275000
0425* Methyl mercaptan 74-93-1 PB4375000
0410 Methyl mercaptophos 8022-00-2 TG1760000
0426* Methyl methacrylate 80-62-6 OZ5075000
0219 N-Methylmethanamine 124-40-3 IP8750000
0417 Methyl methanoate 107-31-3 LQ8925000
0387 Methyl N-((methylamino) carbonyl) oxy) ethanimidothioate 16752-77-5 AK2975000
0387 S-Methyl-N-(methylcarbamoyloxy) thioacetimidate 16752-77-5 AK2975000
0426 Methyl-2-methyl-2-propenoate 80-62-6 OZ5075000
0399* Methyl (n-amyl) ketone 110-43-0 MJ5075000
0325 Methyl n-butyl ketone 591-78-6 MP1400000
0462 2-Methylnitrobenzene 88-72-2 XT3150000
0463 3-Methylnitrobenzene 99-08-1 XT2975000
0464 4-Methylnitrobenzene 99-99-0 XT3325000
0463 m-Methylnitrobenzene 99-08-1 XT2975000
0462 o-Methylnitrobenzene 88-72-2 XT3150000
0464 p-Methylnitrobenzene 99-99-0 XT3325000
0461 N-Methyl-N-nitroso-methanamine 62-75-9 IQ0525000
0428 Methyl orthosilicate 681-84-5 VV9800000
0538 Methyloxirane 75-56-9 TZ2975000
0427* Methyl parathion 298-00-0 TG0175000
0323 2-Methylpentane    
0323 3-Methylpentane    
0328 2-Methyl-2, 4-pentanediol 107-41-5 SA0810000
0328 2-Methylpentane-2, 4-diol 107-41-5 SA0810000
0328 4-Methyl-2, 4-pentanediol 107-41-5 SA0810000
0422 4-Methyl-2-pentanol 108-11-2 SA7350000
0178 2-Methyl-2-pentanol-4-one 123-42-2 SA9100000
0326 4-Methyl 2-pentanone 108-10-1 SA9275000
0385 4-Methyl-3-penten-2-one 141-79-7 SB4200000
0154 2-Methyl phenol 95-48-7 GO6300000
0155 3-Methyl phenol 108-39-4 GO6125000
0156 4-Methyl phenol 106-44-5 GO6475000
0436 Methylphenylamine 100-61-8 BY4550000
0620 Methylphenylene diamine 25376-45-8< XS9445000
0429 1-Methyl-1-phenylethylene 98-83-9 WL5075300
0640 Methyl phosphite 121-45-9 TH1400000
0350 2-Methylpropane 75-28-5 TZ4300000
0353 2-Methylpropanenitrile 78-82-0 TZ4900000
0352 2-Methyl-1-propanol 78-83-1 NP9625000
0078 2-Methyl-2-propanol 75-65-0 EO1925000
0395 2-Methylpropenenitrile 126-98-7 UD1400000
0394 Methyl propenoate 96-33-3 AT2800000
0386 2-Methylpropenoic acid 79-41-4 OZ2975000
0353 2-Methylpropionitrile 78-82-0 TZ4900000
0073 1-Methylpropyl acetate 105-46-4 AF7380000
0351 2-Methylpropyl acetate 110-19-0 AI4025000
0351 2-Methylpropyl ester of acetic acid 110-19-0 AI4025000
0351 beta-Methylpropyl ethanoate 110-19-0 AI4025000
0488 Methyl propyl ketone 107-87-9 SA7875000
0084 2-(1-Methylpropyl) phenol 89-72-5 SJ8920000
0446 3-(1-Methyl-2-pyrrolidyl) pyridine 54-11-5 QS5250000
0428* Methyl silicate 681-84-5 VV9800000
0429* alpha-Methyl styrene 98-83-9 WL5075300
0663 Methylstyrene 25013-15-4 WL5075000
0229 Methyl sulfate 77-78-1 WS8225000
0425 Methyl sulfhydrate 74-93-1 PB4375000
0410 Methyl systox® 8022-00-2 TG1760000
0607 N-Methyl-N, 2, 4, 6-tetranitroaniline 479-45-8 BY6300000
0066 Methyl tribromide 75-25-2 PB5600000
0641 1-Methyl-2, 4, 6-trinitrobenzene 118-96-7 XU0175000
0220 Methyl yellow 60-11-7 BX7350000
0430* Metribuzin 21087-64-9 XZ2990000
0503 Mevinphos 7786-34-7 GQ5250000
0421 MIAK 110-12-3 MP3850000
0422 MIBC 108-11-2 SA7350000
0326 MIBK 108-10-1 SA9275000
0423 MIC 624-83-9 NQ9450000
0431* Mica (containing less than 1% quartz) 12001-26-2 VV8760000
0306 Mineral carbon 7782-42-5 MD9659600
0569 Mineral spirits 8052-41-3 WJ8925000
0308 Mineral white 13397-24-5 MG2360000
0432* Mineral wool fiber   PY8070000
0424 MIPK 563-80-4 EL9100000
0419 MMH 60-34-4 MV5600000
0409 MMT 12108-13-3 OP1450000
0411 MOCA 101-14-4 CY1050000
0064 Molecular bromine 7726-95-6 EF9100000
0115 Molecular chlorine 7782-50-5 FO2100000
0342 Molecular iodine 7553-56-2 NN1575000
0433* Molybdenum 7439-98-7 QA4680000
0433 Molybdenum metal 7439-98-7 QA4680000
0434* Molybdenum (soluble compounds, as Mo)    
0030 Monoammonium salt of sulfamic acid 7773-06-0 WO6125000
0265 Monobromoethane 74-96-4 KH6475000
0657 Monobromoethylene 593-60-2 KU8400000
0400 Monobromomethane 74-83-9 PA4900000
0634 Monobromotrifluoromethane 75-63-8 PA5425000
0120 Monochloroacetyl chloride 79-04-9 AO6475000
0121 Monochlorobenzene 108-90-7 CZ0175000
0124 Monochlorodifluoromethane 75-45-6 PA6390000
0267 Monochloroethane 75-00-3 KH7525000
0658 Monochloroethene 75-01-4 KU9625000
0658 Monochloroethylene 75-01-4 KU9625000
0403 Monochloromethane 74-87-3 PA6300000
0131 Monochloropentafluoroethane 76-15-3 KH7877500
0435 Monocron 6923-22-4 TC4375000
0435* Monocrotophos 6923-22-4 TC4375000
0256 Monoethanolamine 141-43-5 KJ5775000
0263 Monoethylamine 75-04-7 KH2100000
0272 Monoethylene glycol 107-21-1 KW2975000
0660 Monofluoroethylene 75-02-5 YZ7351000
0290 Monofluorotrichloromethane 75-69-4 PB6125000
0300 Monogermane 7782-65-2 LY4900000
0493 Monohydroxybenzene 108-95-2 SJ3325000
0420 Monoiodomethane 74-88-4 PA9450000
0360 Monoisopropylamine 75-31-0 NT8400000
0398 Monomethylamine 74-89-5 PF6300000
0436* Monomethyl aniline 100-61-8 BY4550000
0390 Monomethyl ether hydroquinone 150-76-5 SL7700000
0419 Monomethylhydrazine 60-34-4 MV5600000
0448 Mononitrogen monoxide 10102-43-9 QX0525000
0485 Monopentaerythritol 115-77-5 RZ2490000
0499 Monophenylhydrazine 100-63-0 MV8925000
0556 Monosilane 7803-62-5 VV1400000
0561 Monosodium salt of sulfurous acid 7631-90-5 VZ2000000
0105 Monoxide 630-08-0 FG3500000
0437* Morpholine 110-91-8 QD6475000
0299 Motor fuel 8006-61-9 LX3300000
0299 Motor spirits 8006-61-9 LX3300000
0488 MPK 107-87-9 SA7875000
0267 Muriatic ether 75-00-3 KH7525000
0431 Muscovite 12001-26-2 VV8760000
0671 MXDA 1477-55-0 PF8970000

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