WHMIS 2015 classification

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 (2441), it is arranged alphabetically, according to the first letter of the name. Click on the letters below to access the product lists. The classification under the Controlled Products Regulations (SOR/88-66) will also be displayed for most products 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. The key of this file. Please take note that field delimiter is "|" (ascii 124).

View full list (PDF, 1063 kb).

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

Update : 2017-02-02

Substances débutant par la lettre N - O affichées

Naled

CAS number : 300-76-5

Naphthalene

CAS number : 91-20-3

UN number : UN1334

1,5-Naphthalene diisocyanate

CAS number : 3173-72-6

Naphthalene diisocyanate

CAS number : 25551-28-4

2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-((4-sulfophenyl)azo)-, trisodium salt

CAS number : 23647-14-5

bêta-Naphthalenesulfonic acid

CAS number : 120-18-3

bêta-Naphthalenesulfonic acid monohydrate

CAS number : 54257-18-0

alpha-Naphthol

CAS number : 90-15-3

1,2-Naphthoquinone

CAS number : 524-42-5

1-Naphthyl thiourea

CAS number : 86-88-4

UN number : UN1651

alpha-Naphthylamine

CAS number : 134-32-7

UN number : UN2077

2-Naphthylamine

CAS number : 91-59-8

UN number : UN1650

Natural gas

CAS number : 8006-14-2

UN number : UN1971

Natural graphite

CAS number : 7782-42-5

Neatsfoot oil

CAS number : 8002-64-0

Neodymium trifluoride

CAS number : 13709-42-7

Neohexane

CAS number : 75-83-2

UN number : UN1208

Neomycin

CAS number : 1404-04-2

Neomycin sulfate

CAS number : 1405-10-3

Neon

CAS number : 7440-01-9

UN number : UN1065

Niacinamide

CAS number : 98-92-0

Nickel

CAS number : 7440-02-0

Nickel acetate

CAS number : 373-02-4

Nickel acetate tetrahydrate

CAS number : 6018-89-9

Nickel ammonium sulfate hexahydrate

CAS number : 7785-20-8

Nickel carbonate

CAS number : 3333-67-3

Nickel carbonyl

CAS number : 13463-39-3

UN number : UN1259

Nickel chloride hexahydrate

CAS number : 7791-20-0

Nickel dibromide

CAS number : 13462-88-9

Nickel dibutyldicarbamodithioate

CAS number : 13927-77-0

Nickel dichloride

CAS number : 7718-54-9

Nickel dioxide

CAS number : 12035-36-8

Nickel molybdate

CAS number : 14177-55-0

Nickel monoxyde

CAS number : 1313-99-1

Nickel orthophosphate

CAS number : 10381-36-9

Nickel peroxyde

CAS number : 1314-06-3

Nickel phosphide

CAS number : 12035-64-2

Nickel subsulfide

CAS number : 12035-72-2

Nickel sulfamate

CAS number : 13770-89-3

Nickel sulfate

CAS number : 7786-81-4

Nickel sulfate hexahydrate

CAS number : 10101-97-0

Nickel tetrafluoroborate

CAS number : 14708-14-6

Nickelous nitrate

CAS number : 13138-45-9

UN number : UN2725

Nickelous nitrate hexahydrate

CAS number : 13478-00-7

UN number : UN2725

Nicotine

CAS number : 54-11-5

UN number : UN1654

Nicotine sulfate

CAS number : 65-30-5

UN number : UN1658

Nigrosin

CAS number : 8005-03-6

Niobium selenide

CAS number : 12034-77-4

Nitric acid

CAS number : 7697-37-2

UN number : UN2031

Nitric acid 10%

UN number : UN2031

Nitric acid 6,3 %

UN number : UN2031

Nitric acid 60%

UN number : UN2031

Nitric acid 61,3%

UN number : UN2031

Nitric acid 63%

UN number : UN2031

Nitric acid 67%

UN number : UN2031

Nitric acid 67,18 %

UN number : UN2031

Nitric acid 70%

UN number : UN2031

Nitric acid 90%

UN number : UN2031

o-Nitroaniline

CAS number : 88-74-4

UN number : UN1661

m-Nitroaniline

CAS number : 99-09-2

UN number : UN1661

p-Nitroaniline

CAS number : 100-01-6

UN number : UN1661

Nitrobenzene

CAS number : 98-95-3

UN number : UN1662

2-Nitrobenzoic acid

CAS number : 552-16-9

o-Nitrochlorobenzene

CAS number : 88-73-3

UN number : UN1578

p-Nitrochlorobenzene

CAS number : 100-00-5

UN number : UN1578

m-Nitrochlorobenzene

CAS number : 121-73-3

UN number : UN1578

4-Nitrodiphenyl

CAS number : 92-93-3

Nitroethane

CAS number : 79-24-3

UN number : UN2842

Nitrogen

CAS number : 7727-37-9

UN number : UN1066

Nitrogen dioxide

CAS number : 10102-44-0

UN number : UN1067

Nitrogen monoxide

CAS number : 10102-43-9

UN number : UN1660

Nitrogen trichloride

CAS number : 10025-85-1

Nitrogen trifluoride

CAS number : 7783-54-2

UN number : UN2451

Nitroglycerin

CAS number : 55-63-0

Nitromethane

CAS number : 75-52-5

UN number : UN1261

2-Nitro-p-anisidine

CAS number : 96-96-8

1-Nitropropane

CAS number : 108-03-2

UN number : UN2608

2-Nitropropane

CAS number : 79-46-9

UN number : UN2608

1-Nitroso-2-naphthol

CAS number : 131-91-9

N-Nitrosodimethylamine

CAS number : 62-75-9

p-Nitrotoluene

CAS number : 99-99-0

UN number : UN1664

o-Nitrotoluene

CAS number : 88-72-2

UN number : UN1664

m-Nitrotoluene

CAS number : 99-08-1

UN number : UN1664

Nitrotoluene (mixed isomers)

CAS number : 1321-12-6

UN number : UN1664

Nitrous oxide

CAS number : 10024-97-2

UN number : UN1070

n-Nonadecane

CAS number : 629-92-5

Nonane

CAS number : 111-84-2

UN number : UN1920

Nonanedioic acid, polymer with 1,2-propanediol

CAS number : 29408-67-1

1-Nonylamine

CAS number : 112-20-9

Nonylphenol

CAS number : 25154-52-3

Nonylphenol ethoxylate

CAS number : 9016-45-9

l-Norleucine

CAS number : 327-57-1

d-Norleucine

CAS number : 327-56-0

Octachloronaphthalene

CAS number : 2234-13-1

n-Octadecane

CAS number : 593-45-3

Octadecyl chloride

CAS number : 3386-33-2

Octafluoro-2-butene

CAS number : 360-89-4

UN number : UN2422

Octafluoropropane

CAS number : 76-19-7

UN number : UN2424

Octane

CAS number : 111-65-9

UN number : UN1262

3-Octanol

CAS number : 589-98-0

2-Octanone

CAS number : 111-13-7

3-Octanone

CAS number : 106-68-3

UN number : UN2271

Di-n-octyl phthalate

CAS number : 117-84-0

p-tert-Octylphenol

CAS number : 140-66-9

4-Octylphenol

CAS number : 1806-26-4

ortho-tert-Octylphenol

CAS number : 3884-95-5

Octylphenol

CAS number : 27193-28-8

Oleic acid

CAS number : 112-80-1

Oleic acid

CAS number : 2027-47-6

Oleic acid, tetraethylenepentamine polymer

CAS number : 70321-87-8

Olein

CAS number : 37220-82-9

Oleyl imidazoline

CAS number : 95-38-5

Olive oil

CAS number : 8001-25-0

Opal

CAS number : 14639-88-4

Orcein

CAS number : 1400-62-0

l-Ornithine

CAS number : 70-26-8

l-Ornithine monohydrochloride

CAS number : 3184-13-2

Orthanilamide

CAS number : 3306-62-5

Orthotungstic acid

CAS number : 7783-03-1

Osmium tetroxide

CAS number : 20816-12-0

UN number : UN2471

Oxalacetic acid

CAS number : 328-42-7

Oxalic acid

CAS number : 144-62-7

Oxalic acid dihydrate

CAS number : 6153-56-6

Oxidase, l-amino acid

CAS number : 9000-89-9

1,1'-Oxybis (2,3,4-trichlorobenzene)

CAS number : 71585-39-2

Oxybis(tributyltin)

CAS number : 56-35-9

UN number : UN2788

Oxygen

CAS number : 7782-44-7

UN number : UN1072

Oxygen difluoride

CAS number : 7783-41-7

UN number : UN2190

Ozone

CAS number : 10028-15-6