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).

Substances débutant par la lettre H affichées

Hafnium

CAS number : 7440-58-6

Helium

CAS number : 7440-59-7

UN number : UN1046

Hematoxylin

CAS number : 517-28-2

Hemimellitene

CAS number : 526-73-8

Hendecane

CAS number : 1120-21-4

UN number : UN2330

Heptadecane

CAS number : 629-78-7

Heptadecanoic acid

CAS number : 506-12-7

Normal heptane

CAS number : 142-82-5

UN number : UN1206

3-Heptanol

CAS number : 589-82-2

2-Heptanol

CAS number : 543-49-7

4-Heptanone

CAS number : 123-19-3

UN number : UN2710

3-Heptanone

CAS number : 106-35-4

Heptyl acetate

CAS number : 112-06-1

n-Heptylamine

CAS number : 111-68-2

Hexachloro diphenyl ether

CAS number : 55720-99-5

Hexachloroacetone

CAS number : 116-16-5

UN number : UN2661

Hexachlorobenzene

CAS number : 118-74-1

UN number : UN2729

Hexachlorocyclopentadiene

CAS number : 77-47-4

UN number : UN2646

Hexachloroethane

CAS number : 67-72-1

Hexachloronaphthalene

CAS number : 1335-87-1

Hexachlorophene

CAS number : 70-30-4

UN number : UN2875

Hexachloroplatinic(IV) acid

CAS number : 16941-12-1

UN number : UN2507

Hexadecane

CAS number : 544-76-3

Hexadecyltrichlorosilane

CAS number : 5894-60-0

UN number : UN1781

Hexafluoro-2-propanone

CAS number : 684-16-2

UN number : UN2420

Hexafluoro-2-propanone monohydrate

CAS number : 10543-95-0

UN number : UN2552

Hexafluoro-2-propanone sesquihydrate

CAS number : 13098-39-0

UN number : UN2552

Hexafluoro-2-propanone trihydrate

CAS number : 34202-69-2

UN number : UN2552

Hexafluoroacetone dihydrate

CAS number : 32836-39-8

UN number : UN2552

Hexafluoroethane

CAS number : 76-16-4

UN number : UN2193

Hexafluoroglutaric acid

CAS number : 376-73-8

Hexafluoroisobutylene

CAS number : 382-10-5

Hexafluorophosphoric acid

CAS number : 16940-81-1

UN number : UN1782

Hexakis(methoxymethyl)melamine

CAS number : 3089-11-0

n-Hexaldehyde

CAS number : 66-25-1

UN number : UN1207

Hexamethyldewarbenzene

CAS number : 7641-77-2

Hexamethylene diisocyanate

CAS number : 822-06-0

UN number : UN2281

Hexamethylenediamine

CAS number : 124-09-4

UN number : UN2280

Hexamethylenediamine, adipic acid, laurolactam, caprolactam polymer

CAS number : 26777-62-8

Hexamethylenimine

CAS number : 111-49-9

UN number : UN2493

Hexamethylolmelamine

CAS number : 531-18-0

Hexamethylphosphorotriamide

CAS number : 680-31-9

Normal hexane

CAS number : 110-54-3

UN number : UN1208

1,6-Hexanediol diacrylate

CAS number : 13048-33-4

1,6-Hexanediol diglycidyl ether

CAS number : 16096-31-4

2,4-Hexanedione

CAS number : 3002-24-2

2,5-Hexanedione

CAS number : 110-13-4

1,2,3,4,5,6-Hexanehexol

CAS number : 69-65-8

Hexanitrodiphenylamine

CAS number : 35860-31-2

Hexanoic acid

CAS number : 142-62-1

UN number : UN2829

1-Hexene-3,3,4,4,5,5,6,6,6-nonafluoro

CAS number : 19430-93-4

n-Hexyl acetate

CAS number : 142-92-7

Hexyl alcohol

CAS number : 111-27-3

UN number : UN2282

sec-Hexyl alcohol

CAS number : 97-95-0

UN number : UN2275

Hexyl bromide

CAS number : 111-25-1

n-Hexyl ether

CAS number : 112-58-3

n-Hexylamine

CAS number : 111-26-2

Hexylene glycol

CAS number : 107-41-5

Hexylmethacrylate

CAS number : 142-09-6

Hexyltrichlorosilane

CAS number : 928-65-4

UN number : UN1784

1H-Imidazole-1-ethanol, 2-methyl-5-nitro

CAS number : 443-48-1

Hippuric acid

CAS number : 495-69-2

l-Histidine

CAS number : 71-00-1

d-Histidine

CAS number : 351-50-8

l-Histidine hydrochloride monohydrate

CAS number : 7048-02-4

L-Homoarginine

CAS number : 156-86-5

Hydrazine

CAS number : 302-01-2

UN number : UN2029

Hydrazine monohydrate

CAS number : 7803-57-8

UN number : UN2030

Hydrazobenzene

CAS number : 122-66-7

Hydrazoic acid

CAS number : 7782-79-8

Hydriodic acid

UN number : UN1787

Hydrochloric acid

UN number : UN1789

Hydrochloric acid 0.036 % in aqueous solution

UN number : UN1789

Hydrochloric acid 0.36 % in aqueous solution

UN number : UN1789

Hydrochloric acid 28 % in aqueous solution

UN number : UN1789

Hydrochloric acid 3.6 % in aqueous solution

UN number : UN1789

Hydrochloric acid 31.45 % in aqueous solution

UN number : UN1789

Hydrochloric acid 35,2 % in aqueous solution

UN number : UN1789

Hydrocinnamic acid

CAS number : 501-52-0

Hydrofluoric acid 40 %

UN number : UN1790

Hydrofluoric acid 50%

UN number : UN1790

Hydrofluoric acid 70%

UN number : UN1790

Hydrogen

CAS number : 1333-74-0

UN number : UN1049

Hydrogen arsenide

CAS number : 7784-42-1

UN number : UN2188

Hydrogen bromide

CAS number : 10035-10-6

UN number : UN1048

Hydrogen chloride

CAS number : 7647-01-0

UN number : UN1050

Hydrogen cyanide

CAS number : 74-90-8

UN number : UN1051

Hydrogen fluoride

CAS number : 7664-39-3

UN number : UN1052

Hydrogen peroxide

CAS number : 7722-84-1

UN number : UN2015

Hydrogen peroxide 9%

UN number : UN2984

Hydrogen peroxide 10%

UN number : UN2984

Hydrogen peroxide 15%

UN number : UN2984

Hydrogen peroxide 20%

UN number : UN2014

Hydrogen peroxide 25%

UN number : UN2014

Hydrogen peroxide 30%

UN number : UN2014

Hydrogen peroxide 35%

UN number : UN2014

Hydrogen peroxide 40%

UN number : UN2014

Hydrogen peroxide 50%

UN number : UN2014

Hydrogen peroxide 65%

UN number : UN2015

Hydrogen peroxide 70%

UN number : UN2015

Hydrogen peroxide 75%

UN number : UN2015

Hydrogen peroxide 80%

UN number : UN2015

Hydrogen peroxide 85%

UN number : UN2015

Hydrogen peroxide 90%

UN number : UN2015

Hydrogen peroxide 95%

UN number : UN2015

Hydrogen selenide

CAS number : 7783-07-5

UN number : UN2202

Hydrogen sulfide

CAS number : 7783-06-4

UN number : UN1053

Hydrogenated castor oil

CAS number : 8001-78-3

Hydrogenated terphenyls

CAS number : 61788-32-7

Hydroquinone

CAS number : 123-31-9

UN number : UN2662

Hydroquinone monomethyl ether

CAS number : 150-76-5

Hydroquinone, dimethyl ether

CAS number : 150-78-7

Hydrotreated heavy naphtha (petroleum)

CAS number : 64742-48-9

Hydrotreated middle distillate (petroleum)

CAS number : 64742-46-7

2-Hydroxy-1-naphthoic acid

CAS number : 2283-08-1

2-Hydroxy-2-methylpropanenitrile

CAS number : 75-86-5

UN number : UN1541

3-Hydroxy-2-naphthalene carboxylic acid

CAS number : 92-70-6

4-Hydroxy-3-nitroaniline

CAS number : 119-34-6

3-Hydroxy-4-(2,4-xylylazo)-2,7-naphthalenedisulfonic acid, disodium salt

CAS number : 3761-53-3

4-Hydroxy-4-methyl-2-pentanone

CAS number : 123-42-2

UN number : UN1148

4-Hydroxybenzenepropanoic acid

CAS number : 501-97-3

p-Hydroxybenzoic acid

CAS number : 99-96-7

2-Hydroxydecalin

CAS number : 825-51-4

Hydroxydecanoic acid, gamma-lactone

CAS number : 706-14-9

2-Hydroxyethyl cellulose

CAS number : 9004-62-0

Hydroxyethyl methacrylate

CAS number : 868-77-9

N,N-bis(2-Hydroxyethyl)oleamide

CAS number : 93-83-4

4-Hydroxyheptanoic acid, gamma-lactone

CAS number : 105-21-5

Hydroxylamine disulfate

CAS number : 10039-54-0

UN number : UN2865

1,3-bis(Hydroxymethyl)-5,5-dimethylhydantoin

CAS number : 6440-58-0

2-(Hydroxymethylamino)ethanol

CAS number : 34375-28-5

4-Hydroxyoctanoic acid lactone

CAS number : 104-50-7

2-Hydroxypropyl acrylate

CAS number : 999-61-1

Hydroxypropyl cellulose

CAS number : 9004-64-2

Hydroxypropyl methylcellulose

CAS number : 9004-65-3