​Classification according to WHMIS 1988

The classification list provided in this document was compiled in response to requests for information concerning classifications under federal legislation on controlled products. Please note that this is not an exhaustive list of hazardous products according to WHMIS 1988.

This classification was established by CNESST personnel to the best of their knowledge based on data obtained from scientific literature and it incorporates the criteria contained in the Controlled Products Regulations (SOR/88-66). It does not replace the supplier’s classification which can be found on its Material Safety Data Sheet.

Since the list contains many product names (3275), it is arranged alphabetically, according to the first letter of the name. Click on the letters below to access the product. The classification under the Controlled Products Regulations (SOR/88-66) will be displayed until the end of the transition period on December 1, 2018.

Useful tip: To use the WHMIS product list in a spreadsheet, download the text file containing the WHMIS classification.

View full list (PDF, 769 kb).

Sorted by : Sorting done on : A to Z |  Do sorting on CAS number

Update : 2013-12-13

Substances débutant par la lettre M affichées

Magnesium

CAS number : 7439-95-4

UN number : UN1869

Magnesium (powder)

UN number : UN1418

Magnesium acetate

CAS number : 142-72-3

Magnesium acetate tetrahydrate

CAS number : 16674-78-5

Magnesium arsenate

CAS number : 10103-50-1

UN number : UN1622

Magnesium carbonate

CAS number : 546-93-0

Magnesium chloride

CAS number : 7786-30-3

Magnesium chloride hexahydrate

CAS number : 7791-18-6

Magnesium citrate

CAS number : 3344-18-1

Magnesium fluoride

CAS number : 7783-40-6

Magnesium hydroxide

CAS number : 1309-42-8

Magnesium nitrate hexahydrate

CAS number : 13446-18-9

UN number : UN1474

Magnesium oxide

CAS number : 1309-48-4

Magnesium phosphide

CAS number : 12057-74-8

UN number : UN2011

Magnesium sulfate

CAS number : 7487-88-9

Magnesium sulfate heptahydrate

CAS number : 10034-99-8

Malachite green

CAS number : 569-64-2

Malathion

CAS number : 121-75-5

Maleic acid

CAS number : 110-16-7

Maleic anhydride

CAS number : 108-31-6

UN number : UN2215

Malic acid

CAS number : 6915-15-7

Malonaldehyde

CAS number : 542-78-9

Malonic acid

CAS number : 141-82-2

Malonic dinitrile

CAS number : 109-77-3

UN number : UN2647

Maltose

CAS number : 69-79-4

Maltose monohydrate

CAS number : 6363-53-7

Mancozeb

CAS number : 8018-01-7

Mandelonitrile

CAS number : 532-28-5

Manganese carbonate

CAS number : 598-62-9

Manganese cyclopentadienyl tricarbonyl

CAS number : 12079-65-1

Manganese dichloride

CAS number : 7773-01-5

Manganese dioxide

CAS number : 1313-13-9

Manganese disulfide

CAS number : 12125-23-4

Manganese methylcyclopentadienyl tricarbonyl

CAS number : 12108-13-3

Manganese powder

CAS number : 7439-96-5

UN number : UN2813

Manganese sulfate

CAS number : 7785-87-7

Manganese(II) sulfate monohydrate

CAS number : 10034-96-5

Manganese(II)acetate

CAS number : 638-38-0

Manganese, elemental

CAS number : 7439-96-5

Manganous phosphate

CAS number : 14154-09-7

Manganous sulfide

CAS number : 18820-29-6

Mannose

CAS number : 3458-28-4

Marble
Marcasite

CAS number : 1317-66-4

Medium aliphatic solvent naphtha (petroleum) C9-C12

CAS number : 64742-88-7

Melibiose

CAS number : 585-99-9

Menhaden oil

CAS number : 8002-50-4

Menthol

CAS number : 89-78-1

2-Mercaptoethanol

CAS number : 60-24-2

UN number : UN2966

Mercuric acetate

CAS number : 1600-27-7

UN number : UN1629

Mercuric bromide

CAS number : 7789-47-1

UN number : UN1634

Mercuric chloride

CAS number : 7487-94-7

UN number : UN1624

Mercuric chromate

CAS number : 13444-75-2

Mercuric cyanide

CAS number : 592-04-1

UN number : UN1636

Mercuric iodide

CAS number : 7774-29-0

UN number : UN1638

Mercuric nitrate

CAS number : 10045-94-0

UN number : UN1625

Mercuric oxide

CAS number : 21908-53-2

UN number : UN1641

Mercuric sulfate

CAS number : 7783-35-9

UN number : UN1645

Mercuric thiocyanate

CAS number : 592-85-8

UN number : UN1646

Mercurous bromide

CAS number : 15385-58-7

UN number : UN1634

Mercurous chloride

CAS number : 7546-30-7

Mercurous nitrate

CAS number : 10415-75-5

UN number : UN1627

Mercury

CAS number : 7439-97-6

UN number : UN2809

Mercury(I) chloride

CAS number : 10112-91-1

Mesityl oxide

CAS number : 141-79-7

UN number : UN1229

Mesitylene

CAS number : 108-67-8

UN number : UN2325

Mesotartaric acid

CAS number : 147-73-9

meta-Chlorostyrene

CAS number : 2039-85-2

Metaldehyde

CAS number : 9002-91-9

UN number : UN1332

Metanilic acid

CAS number : 121-47-1

Metaphosphorique acide

CAS number : 37267-86-0

Metasilicic acid

CAS number : 7699-41-4

Methacrylaldehyde

CAS number : 78-85-3

UN number : UN2396

Methacrylic acid

CAS number : 79-41-4

UN number : UN2531

Methacrylic acid, polymer with ethyl acrylate and methyl methacrylate

CAS number : 25133-97-5

Methane

CAS number : 74-82-8

UN number : UN1971

Methanethiol

CAS number : 74-93-1

UN number : UN1064

Methanolamine

CAS number : 3088-27-5

Methenamine

CAS number : 100-97-0

UN number : UN1328

d-Methionine

CAS number : 348-67-4

2-Methoxy-1,4-benzenediamine

CAS number : 5307-02-8

2-Methoxybenzaldehyde

CAS number : 135-02-4

4-Methoxybenzaldehyde

CAS number : 123-11-5

3-Methoxybenzaldehyde

CAS number : 591-31-1

Bis(2-methoxyethyl)phthalate

CAS number : 117-82-8

Methoxymethyl isocyanate

CAS number : 6427-21-0

UN number : UN2605

2-Methoxypropene

CAS number : 116-11-0

Methyl 3-mercaptopropionate

CAS number : 2935-90-2

Methyl abietate

CAS number : 127-25-3

Methyl acetate

CAS number : 79-20-9

UN number : UN1231

Methyl acetylene-Propadiene mixture (MAPP)

CAS number : 59355-75-8

UN number : UN1060

Methyl acrylate

CAS number : 96-33-3

UN number : UN1919

Methyl alcohol

CAS number : 67-56-1

UN number : UN1230

Methyl alcohol 28%

UN number : UN1993

Methyl bromide

CAS number : 74-83-9

UN number : UN1062

Methyl bromoacetate

CAS number : 96-32-2

UN number : UN2643

Methyl butyl ketone

CAS number : 591-78-6

Methyl butyrate

CAS number : 623-42-7

UN number : UN1237

Methyl caprate

CAS number : 110-42-9

Methyl cyanoformate

CAS number : 17640-15-2

Methyl dichlorosilane

CAS number : 75-54-7

UN number : UN1242

Methyl ethyl ketone

CAS number : 78-93-3

UN number : UN1193

Methyl ethyl ketone peroxide

CAS number : 1338-23-4

Methyl fluoride

CAS number : 593-53-3

UN number : UN2454

Methyl fluoroformate
Methyl formate

CAS number : 107-31-3

UN number : UN1243

Methyl heptyl ketone

CAS number : 58654-67-4

Methyl iodide

CAS number : 74-88-4

UN number : UN2644

Methyl isoamyl ketone

CAS number : 110-12-3

UN number : UN2302

Methyl isobutyl ketone

CAS number : 108-10-1

UN number : UN1245

Methyl isocyanate

CAS number : 624-83-9

UN number : UN2480

Methyl isopropenyl ketone

CAS number : 814-78-8

UN number : UN1246

Methyl isopropyl ketone

CAS number : 563-80-4

UN number : UN2397

METHYL LAURATE

CAS number : 111-82-0

Methyl methacrylate

CAS number : 80-62-6

UN number : UN1247

Methyl methacrylate polymer

CAS number : 9011-14-7

Methyl methacrylate-butyl acrylate-styrene copolymer

CAS number : 27136-15-8

Methyl methanesulfonate

CAS number : 66-27-3

METHYL MYRISTATE

CAS number : 124-10-7

Methyl n-amyl ketone

CAS number : 110-43-0

UN number : UN1110

METHYL OLEATE

CAS number : 112-62-9

Methyl orthoformate

CAS number : 149-73-5

METHYL PALMITATE

CAS number : 112-39-0

Methyl phenylacetate

CAS number : 101-41-7

Methyl phosphonothioic dichloride

CAS number : 676-98-2

Methyl phosphonous dichloride

CAS number : 676-83-5

Methyl propionate

CAS number : 554-12-1

UN number : UN1248

Methyl propyl ketone

CAS number : 107-87-9

UN number : UN1249

N-Methyl pyrrolidone

CAS number : 872-50-4

Methyl red

CAS number : 493-52-7

Methyl salicylate

CAS number : 119-36-8

Methyl selenide

CAS number : 593-79-3

Methyl silicate

CAS number : 681-84-5

UN number : UN2606

METHYL STEARATE

CAS number : 112-61-8

Methyl undecylenate

CAS number : 5760-50-9

Methyl vinyl ketone

CAS number : 78-94-4

UN number : UN1251

Methyl violet

CAS number : 1325-82-2

2-Methyl-1,4-benzoquinone

CAS number : 553-97-9

2-Methyl-1-pentanol

CAS number : 105-30-6

3-Methyl-1-phenyl-2-pyrazolin-5-one

CAS number : 89-25-8

Methyl-2 propane

CAS number : 75-28-5

UN number : UN1969

6-Methyl-2-benzothiazolyl-4-amino phenyl

CAS number : 92-36-4

1-Methyl-2-benzylhydrazine

CAS number : 10309-79-2

Methyl-2-cyanoacrylate

CAS number : 137-05-3

Methyl-2-furoate

CAS number : 611-13-2

2-Methyl-2-propene-1,1-diol diacetate

CAS number : 10476-95-6

3-Methyl-3-octanol

CAS number : 5340-36-3

n-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine

CAS number : 28289-54-5

2-Methyl-5-ethylpyridine

CAS number : 104-90-5

UN number : UN2300

2-Methyl-5-vinylpyridine

CAS number : 140-76-1

o-Methylacetanilide

CAS number : 120-66-1

Methylacetoacetate

CAS number : 105-45-3

Methylacetylene

CAS number : 74-99-7

UN number : UN1954

N-Methylacrylamide

CAS number : 1187-59-3

2-Methylacrylamide

CAS number : 79-39-0

Methylacrylonitrile

CAS number : 126-98-7

Methylal

CAS number : 109-87-5

UN number : UN1234

Methylamine

CAS number : 74-89-5

UN number : UN1061

Methylamine 40%

UN number : UN1235

Methylamine hydrochloride

CAS number : 593-51-1

1-Methylamino-4-ethanolaminoanthraquinone

CAS number : 2475-46-9

Methylamyl alcohol

CAS number : 108-11-2

UN number : UN2053

N-Methylaniline

CAS number : 100-61-8

UN number : UN2294

2-Methylaziridine

CAS number : 75-55-8

UN number : UN1921

Methylazoxymethyl acetate

CAS number : 592-62-1

p-Methylbenzyl alcohol

CAS number : 589-18-4

alpha-Methylbenzyl alcohol

CAS number : 98-85-1

UN number : UN2937

3-Methylbenzyl alcohol

CAS number : 587-03-1

2-Methylbenzyl alcohol

CAS number : 89-95-2

N-Methyl-bis(2-chloroethyl)amine

CAS number : 51-75-2

2-Methylbutane

CAS number : 78-78-4

UN number : UN1265

N-Methylbutylamine

CAS number : 110-68-9

UN number : UN2945

Methylchloroformate

CAS number : 79-22-1

UN number : UN1238

Methylchloromethyl ether

CAS number : 107-30-2

UN number : UN1239

Methylchlorosilane

CAS number : 993-00-0

UN number : UN2534

3-Methylcholanthrene

CAS number : 56-49-5

5-Methylchrysene

CAS number : 3697-24-3

Methylcyclohexane

CAS number : 108-87-2

UN number : UN2296

3-Methylcyclohexanol

CAS number : 591-23-1

4-Methylcyclohexanol

CAS number : 589-91-3

2-Methylcyclohexanol

CAS number : 583-59-5

Methylcyclohexanol (mixed isomers)

CAS number : 25639-42-3

4-Methylcyclohexanone

CAS number : 589-92-4

UN number : UN2297

2-Methylcyclohexanone

CAS number : 583-60-8

UN number : UN2297

3-Methylcyclohexanone

CAS number : 591-24-2

UN number : UN2297

Methylcyclohexanone (mixed isomers)

CAS number : 1331-22-2

UN number : UN2297

3-Methylcyclopentanone

CAS number : 1757-42-2

Methylene blue

CAS number : 61-73-4

Methylene bromide

CAS number : 74-95-3

UN number : UN2664

Methylene chloride

CAS number : 75-09-2

UN number : UN1593

4,4'-Methylenebis(2-chloroaniline)

CAS number : 101-14-4

2,2'-Methylenebis(4-methyl-6-tert-butylphenol)

CAS number : 119-47-1

4,4'-Methylenebis(N,N-dimethyl)-benzenamine

CAS number : 101-61-1

2-Methylfuran

CAS number : 534-22-5

UN number : UN2301

Methylglycol acetate

CAS number : 110-49-6

UN number : UN1189

3-Methylhexane

CAS number : 589-34-4

UN number : UN1206

1-Methylhydantoin-2-imide

CAS number : 60-27-5

Methylhydrazine

CAS number : 60-34-4

UN number : UN1244

Methylmercuric dicyanamide

CAS number : 502-39-6

Methylmercury

CAS number : 22967-92-6

Methylmercury chloride

CAS number : 115-09-3

Methylmorpholine

CAS number : 109-02-4

UN number : UN2535

2-Methylnaphthalene

CAS number : 91-57-6

Methylnaphthalene

CAS number : 1321-94-4

1-Methylnaphthalene

CAS number : 90-12-0

Methylnitropropyl-4-nitrosoaniline

CAS number : 24458-48-8

N-Methyl-N'-nitro-N-nitrosoguanidine

CAS number : 70-25-7

n-Methyl-p-aminophenol sulfate

CAS number : 55-55-0

2-Methylpentane

CAS number : 107-83-5

UN number : UN1208

3-Methylpentane

CAS number : 96-14-0

UN number : UN1208

2-Methylpentane

CAS number : 73513-42-5

UN number : UN1208

2-Methylpentanoic acid

CAS number : 97-61-0

1-Methylphenanthrene

CAS number : 832-69-9

Methylphenyldichlorosilane

CAS number : 149-74-6

UN number : UN2437

N-Methyl-p-phenylenediamine dihydrochloride

CAS number : 5395-70-0

Methyl-p-toluenesulfonate

CAS number : 80-48-8

Alpha-methylstyrene

CAS number : 98-83-9

UN number : UN2303

Methyltetrahydrofuran

CAS number : 96-47-9

UN number : UN2536

Methyltriethoxysilane

CAS number : 2031-67-6

Methyltrimethoxysilane

CAS number : 1185-55-3

Mica (containing less than 1% quartz)

CAS number : 12001-26-2

Michler's ketone

CAS number : 90-94-8

Microcrystalline cellulose

CAS number : 9004-34-6

Middle distillate solvent extract (petroleum)

CAS number : 64742-06-9

Mineral oil

CAS number : 8012-95-1

Mineral wool fiber
Molybdate orange

CAS number : 12656-85-8

Molybdenum

CAS number : 7439-98-7

Molybdenum dichloride

CAS number : 13478-17-6

Molybdenum dioxide

CAS number : 18868-43-4

Molybdenum sulfide

CAS number : 1317-33-5

Molybdenum tetrabromide

CAS number : 13520-59-7

Molybdenum trioxide

CAS number : 1313-27-5

Molybdic acid

CAS number : 7782-91-4

Monochlorosilane

CAS number : 13465-78-6

UN number : UN2988

Monofluorophosphoric acid

CAS number : 13537-32-1

Monomethylformamide

CAS number : 123-39-7

Monosodium ferric EDTA

CAS number : 15708-41-5

Monosodium phosphate

CAS number : 7558-80-7

Montmorillonite

CAS number : 1318-93-0

Morpholine

CAS number : 110-91-8

UN number : UN2054

Morpholine ethanol

CAS number : 622-40-2

Mustard gas

CAS number : 505-60-2

Myrcene

CAS number : 123-35-3

Myristic acid

CAS number : 544-63-8

Myristic alcohol

CAS number : 112-72-1

Myristic alcohol (mixed isomers)

CAS number : 27196-00-5

Myristic aldehyde

CAS number : 124-25-4