The classification list provided in this document was compiled in response to requests for information concerning classifications under federal legislation on hazardous products. Please note that this is not an exhaustive list of hazardous products according to WHMIS 2015.

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 Hazardous Products Regulations (SOR/2015-17). It does not replace the supplier’s classification which can be found on its Safety Data Sheet.

Since the list contains many product names (2419​​​), it is arranged alphabetically, according to the first letter of the name. Click on the letters below to access the product lists.

Useful tip: To use the WHMIS product list in a spreadsheet, download the text (CSV) file containing the WHMIS classification. The key of this file. Please take note that field delimiter is "|" (ascii 124).

View full list (PDF, 1143 kb).

Substances débutant par la lettre A affichées

Acenaphthene

CAS number : 83-32-9

Acenaphthoquinone

CAS number : 82-86-0

Acenaphthylene

CAS number : 208-96-8

Acepromazine

CAS number : 61-00-7

Acetaldehyde diethylacetal

CAS number : 105-57-7

Acetamide

CAS number : 60-35-5

Acetaminophen

CAS number : 103-90-2

Acetanilide

CAS number : 103-84-4

Acetic acid

CAS number : 64-19-7

UN number : UN2789

Acetic acid, C6-C8 branched alkyl esters

CAS number : 90438-79-2

Acetic acid, more than 80%

UN number : UN2789

Acetic anhydride

CAS number : 108-24-7

UN number : UN1715

Acetoacetanilide

CAS number : 102-01-2

o-Acetoacetaniside

CAS number : 92-15-9

Acetone

CAS number : 67-64-1

UN number : UN1090

Acetonitrile

CAS number : 75-05-8

UN number : UN1648

Acetyl bromide

CAS number : 506-96-7

UN number : UN1716

Acetyl chloride

CAS number : 75-36-5

UN number : UN1717

Acetylbutyryl

CAS number : 3848-24-6

Acetylcholine chloride

CAS number : 60-31-1

Acetylene

CAS number : 74-86-2

UN number : UN1001

Acetylene dichloride

CAS number : 540-59-0

UN number : UN1150

Acetylsulfanilyl chloride

CAS number : 121-60-8

cis-Aconitic acid

CAS number : 585-84-2

Acridine orange

CAS number : 65-61-2

Acridine orange, biological stain

CAS number : 10127-02-3

Acrolein

CAS number : 107-02-8

UN number : UN1092

Acrylamide

CAS number : 79-06-1

UN number : UN2074

Acrylic acid

CAS number : 79-10-7

UN number : UN2218

Acrylic acid, diester with 2,2'-(isopropylidenebis(p-phenyleneoxy))diethanol

CAS number : 24447-78-7

Actinolite

CAS number : 13768-00-8

UN number : UN2590

Actinolite

CAS number : 12172-67-7

UN number : UN2590

Activated charcoal

CAS number : 64365-11-3

UN number : UN1362

Adamantamine

CAS number : 768-94-5

Adipic acid

CAS number : 124-04-9

Adiponitrile

CAS number : 111-69-3

UN number : UN2205

Adipoyl chloride

CAS number : 111-50-2

Adonitol

CAS number : 488-81-3

Agaric acid

CAS number : 666-99-9

Agate

CAS number : 15723-40-7

Air

UN number : UN1002

d-Alanine

CAS number : 338-69-2

l-Alanine

CAS number : 56-41-7

Alcian blue

CAS number : 33864-99-2

Alcohols, C12-15, ethoxylated

CAS number : 68131-39-5

Alcohols, C12-15, ethoxylated propoxylated

CAS number : 68551-13-3

Aldehyde furfurylique

CAS number : 98-01-1

UN number : UN1199

Alizarin

CAS number : 72-48-0

Alizarin complexone

CAS number : 3952-78-1

Alkyl derivatives of benzenesulfonic acid

CAS number : 42615-29-2

Alkyl(C12-C16) dimethylbenzylammonium chloride

CAS number : 68424-85-1

N-Alkyl(C8-C18)-N,N-dimethyl-3,4-dichlorobenzylammonium chloride

CAS number : 8023-53-8

Alkylamines C14-C18 ethoxylated

CAS number : 68155-33-9

Allantoic acid

CAS number : 99-16-1

d-Allethrin

CAS number : 42534-61-2

Allyl acetate

CAS number : 591-87-7

UN number : UN2333

Allyl acetoacetate

CAS number : 1118-84-9

Allyl alcohol

CAS number : 107-18-6

UN number : UN1098

Allyl bromide

CAS number : 106-95-6

UN number : UN1099

Allyl butyrate

CAS number : 2051-78-7

Allyl cyanoacetate

CAS number : 13361-32-5

Allyl ether

CAS number : 557-40-4

UN number : UN2360

Allyl glycidyl ether

CAS number : 106-92-3

UN number : UN2219

Allyl isocyanate

CAS number : 1476-23-9

Allyl methacrylate

CAS number : 96-05-9

Allyl propyl disulfide

CAS number : 2179-59-1

4-Allyl-2,6-dimethoxyphenol

CAS number : 6627-88-9

4-Allylanisole

CAS number : 140-67-0

Allylbenzene

CAS number : 300-57-2

Allylchloromethyldimethylsilane

CAS number : 75422-66-1

Allylcyclopentane

CAS number : 3524-75-2

Allylcyclopentenylbarbital

CAS number : 76-68-6

Allyldimethylchlorosilane

CAS number : 4028-23-3

Allyle caproate

CAS number : 123-68-2

Allyloxytrimethylsilane

CAS number : 18146-00-4

Allylpaladium chloride dimer

CAS number : 12012-95-2

Allylpentafluorobenzene

CAS number : 1736-60-3

Allylsilicone trichloride

CAS number : 107-37-9

UN number : UN1724

Allyltriethoxysilane

CAS number : 2550-04-1

Allyltrimethylsilane

CAS number : 762-72-1

Allyltriphenylphosphonium bromide

CAS number : 1560-54-9

Allylurea

CAS number : 557-11-9

Alphazurine A

CAS number : 3486-30-4

Alphenate

CAS number : 115-43-5

Aluminium ammonium sulfate tetracohydrate

Aluminium trisulfate 25%

Aluminum

CAS number : 7429-90-5

Aluminum (powder)

CAS number : 7429-90-5

UN number : UN1396

Aluminum (pyrotechnical powder)

CAS number : 80341-19-1

Aluminum acetate

CAS number : 139-12-8

Aluminum acetylsalicylate

CAS number : 23413-80-1

Aluminum ammonium sulfate

CAS number : 7784-25-0

Aluminum ammonium sulfate dodecahydrate

CAS number : 7784-26-1

Aluminum borate

CAS number : 11121-16-7

Aluminum bromide

CAS number : 7727-15-3

UN number : UN1725

Aluminum calcium oxide (2:1)

CAS number : 12042-68-1

Aluminum calcium oxide (2:3)

CAS number : 12042-78-3

Aluminum carbide

CAS number : 1299-86-1

UN number : UN1394

Aluminum diformate

Aluminum dihydroxyallantoinate

CAS number : 5579-81-7

Aluminum di-sec-butoxide acetoacetic ester chelate

CAS number : 24772-51-8

Aluminum distearate

CAS number : 300-92-5

Aluminum fluorosulfate hydrate

CAS number : 73680-58-7

Aluminum formate

CAS number : 7360-53-4

Aluminum hydroxide

CAS number : 21645-51-2

alpha-Aluminum hydroxide

CAS number : 14762-49-3

Aluminum magnesium silicate

CAS number : 1327-43-1

Aluminum monostearate

CAS number : 7047-84-9

Aluminum nickel catalyst

CAS number : 12635-29-9

Aluminum nitrate

CAS number : 13473-90-0

UN number : UN1438

Aluminum nitrate nonahydrate

CAS number : 7784-27-2

UN number : UN1438

Aluminum nitride

CAS number : 24304-00-5

alpha-Aluminum oxide

CAS number : 1344-28-1

Aluminum phosphate

CAS number : 7784-30-7

Aluminum phosphide

CAS number : 20859-73-8

UN number : UN1397

Aluminum potassium sulfate

CAS number : 10043-67-1

Aluminum silicate

CAS number : 12141-46-7

Aluminum sodium fluoride

CAS number : 15096-52-3

Aluminum sodium sulfate

CAS number : 10102-71-3

Aluminum sodium sulfate dodecahydrate

CAS number : 7784-28-3

Aluminum subacetate

CAS number : 142-03-0

Aluminum sulfate

CAS number : 10043-01-3

Aluminum sulfate hexadecahydrate

CAS number : 16828-11-8

Aluminum sulfate octadecahydrate

CAS number : 7784-31-8

Aluminum triethoxyde

CAS number : 555-75-9

Aluminum trifluoride

CAS number : 7784-18-1

Aluminum triisopropylate

CAS number : 555-31-7

Aluminum trimethyl

CAS number : 75-24-1

Aluminum tristearate

CAS number : 637-12-7

Ambergris

CAS number : 8038-65-1

Amethyst

CAS number : 14832-91-8

2-Amino-1,4-benzenedisulfonic acid

CAS number : 98-44-2

2-Amino-1-propanol

CAS number : 78-91-1

2-Amino-2-ethyl-1,3-propanediol

CAS number : 115-70-8

2-Amino-2-methyl-1,3-propanediol

CAS number : 115-69-5

2-Amino-3-methylpyridine

CAS number : 1603-40-3

2-Amino-4-picoline

CAS number : 695-34-1

2-Amino-6-picoline

CAS number : 1824-81-3

Aminoacetonitrile bisulfate

CAS number : 151-63-3

4-Aminoacetophenone

CAS number : 99-92-3

2-Aminoacetophenone

CAS number : 551-93-9

1-Aminoanthraquinone

CAS number : 82-45-1

4-Aminoantipyrine

CAS number : 83-07-8

4-Aminoazobenzene-3,4'-disulfonic acid

CAS number : 101-50-8

2-Aminobenzaldehyde

CAS number : 529-23-7

p-Aminobenzanide

CAS number : 2835-68-9

3-Aminobenzoic acid

CAS number : 99-05-8

4-Aminobenzoic acid

CAS number : 150-13-0

4-Aminobiphenyl

CAS number : 92-67-1

2-Aminobutanoic acid

CAS number : 2835-81-6

2-Aminobutanol

CAS number : 5856-63-3

Aminodiacetic acid

CAS number : 142-73-4

2-Aminoethanol

CAS number : 141-43-5

UN number : UN2491

2-Aminoethoxyethanol

CAS number : 929-06-6

UN number : UN3055

Aminoethyl sulfate

CAS number : 926-39-6

2-Aminoethylisothiourea hydrobromide

CAS number : 56-10-0

Aminoguanidine bicarbonate

CAS number : 2582-30-1

Aminomethyl-5 trimethyl-3,5,5 cyclohexylamine

CAS number : 2855-13-2

UN number : UN2289

Aminonaphthol sulfonic acid

CAS number : 87-02-5

1-Aminooctane

CAS number : 111-86-4

bis(4-Aminophenyl)methane

CAS number : 101-77-9

UN number : UN2651

Aminophyllin

CAS number : 317-34-0

3-Aminopropanoic acid

CAS number : 107-95-9

3-Aminopropyltrimethoxysilane

CAS number : 13822-56-5

2-Aminopyridine

CAS number : 504-29-0

UN number : UN2671

4-Aminopyridine

CAS number : 504-24-5

UN number : UN2671

4-Aminosalicylic acid

CAS number : 65-49-6

5-Aminosalicylic acid

CAS number : 89-57-6

Aminothiazol

CAS number : 96-50-4

Aminotriazole

CAS number : 61-82-5

11-Amino-undecanoic acid polymer

CAS number : 25587-80-8

Ammonia

CAS number : 7664-41-7

UN number : UN1005

Ammonia solution, in water, 10 to 35 % ammonia

UN number : UN2672

Ammonia solution, in water, with 35 to 50 % ammonia

UN number : UN2073

Ammonia solution, in water, with more than 50 % ammonia

UN number : UN3318

Ammonium acetate

CAS number : 631-61-8

Ammonium arsenate

CAS number : 7784-44-3

UN number : UN1546

Ammonium benzenesulfonate

CAS number : 19402-64-3

Ammonium benzoate

CAS number : 1863-63-4

Ammonium bicarbonate

CAS number : 1066-33-7

Ammonium binoxalate

CAS number : 5972-72-5

Ammonium bisulfate

CAS number : 7803-63-6

UN number : UN2506

Ammonium borate

CAS number : 12007-57-7

Ammonium chlorate

CAS number : 10192-29-7

Ammonium chloride

CAS number : 12125-02-9

Ammonium chromate

CAS number : 7788-98-9

Ammonium citrate tribasic

CAS number : 3458-72-8

Ammonium cumenesulfonate

CAS number : 37475-88-0

Ammonium dichromate

CAS number : 7789-09-5

UN number : UN1439

Ammonium difluoride

CAS number : 1341-49-7

UN number : UN1727

Ammonium dimolybdate

CAS number : 27546-07-2

Ammonium dimolybdate tetrahydrate

CAS number : 33972-39-3

Ammonium dithiocarbamate

CAS number : 513-74-6

Ammonium ferric sulfate

CAS number : 10138-04-2

Ammonium ferric sulfate dodecahydrate

CAS number : 7783-83-7

Ammonium ferrous sulfate hexahydrate

CAS number : 7783-85-9

Ammonium fluoride

CAS number : 12125-01-8

UN number : UN2505

Ammonium fluorosilicate

CAS number : 16919-19-0

UN number : UN2854

Ammonium heptamolybdate

CAS number : 12027-67-7

Ammonium heptamolybdate tetrahydrate

CAS number : 12054-85-2

Ammonium hydroxide

CAS number : 1336-21-6

UN number : UN2672

Ammonium hydroxide 1N

Ammonium laureth sulfate

CAS number : 32612-48-9

Ammonium monomolybdate

CAS number : 13106-76-8

Ammonium nickel sulfate

CAS number : 15699-18-0

Ammonium nitrate

CAS number : 6484-52-2

UN number : UN1942

Ammonium octamolybdate

CAS number : 12411-64-2

Ammonium oxalate

CAS number : 1113-38-8

Ammonium oxalate monohydrate

CAS number : 6009-70-7

Ammonium persulfate

CAS number : 7727-54-0

UN number : UN1444

Ammonium phosphonolybdate

CAS number : 12026-66-3

Ammonium stearate

CAS number : 1002-89-7

Ammonium sulfamate

CAS number : 7773-06-0

Ammonium sulfate

CAS number : 7783-20-2

Ammonium tetramolybdate

CAS number : 12207-64-6

Ammonium thioglycolate

CAS number : 5421-46-5

Ammonium thiosulfate

CAS number : 7783-18-8

Ammonium thiosulfate 60%

Amorphous silica

CAS number : 7631-86-9

Amosite

CAS number : 12172-73-5

UN number : UN2212

Normal amyl acetate

CAS number : 628-63-7

UN number : UN1104

n-Amyl alcohol

CAS number : 71-41-0

UN number : UN1105

Amyl bromide

CAS number : 110-53-2

Amylase, gluco-

CAS number : 9032-08-0

Aniline

CAS number : 62-53-3

UN number : UN1547

Aniline blue, water soluble

CAS number : 28631-66-5

Aniline hydrochloride

CAS number : 142-04-1

UN number : UN1548

Animal grease, sodium salt

CAS number : 61789-66-0

o-Anisic acid

CAS number : 579-75-9

o-Anisidine

CAS number : 90-04-0

UN number : UN2431

p-Anisidine

CAS number : 104-94-9

UN number : UN2431

m-Anisidine

CAS number : 536-90-3

UN number : UN2431

Anisidine (mixed isomers)

CAS number : 29191-52-4

Anthophyllite

CAS number : 17068-78-9

UN number : UN2590

Anthophyllite

CAS number : 37229-03-1

UN number : UN2590

Anthophyllite

CAS number : 61180-72-1

UN number : UN2590

Anthracene

CAS number : 120-12-7

Anthramine

CAS number : 610-49-1

Anthranilic acid

CAS number : 118-92-3

Antimony

CAS number : 7440-36-0

Antimony (powder)

CAS number : 7440-36-0

UN number : UN2871

Antimony pentachloride

CAS number : 7647-18-9

UN number : UN1730

Antimony pentafluoride

CAS number : 7783-70-2

UN number : UN1732

Antimony potassium tartrate

CAS number : 28300-74-5

UN number : UN1551

Antimony trichloride

CAS number : 10025-91-9

UN number : UN1733

Antimony trifluoride

CAS number : 7783-56-4

Antimony trihydride

CAS number : 7803-52-3

UN number : UN2676

Antimony trioxide

CAS number : 1309-64-4

Antimony trisulfide

CAS number : 1345-04-6

Arabic gum

CAS number : 9000-01-5

Arabinose

CAS number : 147-81-9

d-Arabinose

CAS number : 10323-20-3

l-Arabinose

CAS number : 5328-37-0

Arachidic acid

CAS number : 506-30-9

d-Arginine

CAS number : 157-06-2

l-Arginine

CAS number : 74-79-3

l-Arginine hydrochloride

CAS number : 1119-34-2

Argon

CAS number : 7440-37-1

UN number : UN1006

Arsenic

CAS number : 7440-38-2

UN number : UN1558

Arsenic acid

CAS number : 7778-39-4

UN number : UN1554

Arsenic pentaselenide

CAS number : 1303-37-3

Arsenic pentoxide

CAS number : 1303-28-2

UN number : UN1559

Arsenic selenide

CAS number : 1303-36-2

Asbestos

CAS number : 12413-45-5

Asbestos

CAS number : 77641-59-9

Asbestos

CAS number : 1332-21-4

Ascorbic acid

CAS number : 50-81-7

l-Asparagine

CAS number : 70-47-3

d-Asparagine

CAS number : 2058-58-4

l-Aspargine monohydrate

CAS number : 5794-13-8

l-Aspartic acid

CAS number : 56-84-8

d-Aspartic acid

CAS number : 1783-96-6

Atrazine

CAS number : 1912-24-9

Aziridine

CAS number : 151-56-4

UN number : UN1185