List of IARC Group 2B carcinogens

A

• A-α-C (2-Amino-9H-pyrido[2,3-b]indole)
• Acetaldehyde
• Acetamide
• Acrylonitrile
• AF-2 (2-(2-Furyl)-3-(5-nitro-2-furyl)acrylamide)
• Aflatoxin M1
• 1-Amino-2,4-dibromoanthraquinone
• para-Aminoazobenzene
• ortho-Aminoazotoluene
• 2-Amino-5-(5-nitro-2-furyl)-1,3,4-thiadiazole
• Amsacrine
• ortho-Anisidine
• Anthraquinone
• Antimony trioxide
• Aramite
• Auramine
• Azaserine
• Aziridine

B

• Benz[j]aceanthrylene
• Benz[a]anthracene
• Benzo[b]fluoranthene
• Benzo[j]fluoranthene
• Benzo[k]fluoranthene
• Benzo[c]phenanthrene
• Benzophenone
• Benzofuran
• Benzyl violet 4B
• 2,2-Bis(bromomethyl)propane-1,3-diol
• BK polyomavirus (BKV)
• Bleomycin
• Bracken fern
• Bromochloroacetic acid
• Bromodichloromethane
• 1-Bromopropane
• Butylated hydroxyanisole
• β-Butyrolactone

C

• Caffeic acid
• Carbazole
• Carbon black
• Carbon nanotubes, multi-walled MWCNT-7
• Carbon tetrachloride
• Catechol
• Chlordane
• Chlordecone (Kepone)
• Chlorendic acid
• para-Chloroaniline
• 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone
• Chloroform
• 1-Chloro-2-methylpropene
• 3-Chloro-2-methylpropene, technical grade
• Chlorophenoxy herbicides
• 4-Chloro-ortho-phenylenediamine
• Chloroprene
• Chlorothalonil
• Chrysene
• CI Acid Red 114
• CI Basic Red 9
• CI Direct Blue 15
• Citrus Red No. 2
• Cobalt and cobalt compounds ¹
• Cobalt sulfate and other soluble cobalt(II) salts
• Coconut oil diethanolamine condensate
• para-Cresidine
• Cumene
• Cycasin

D

• 2,4-D (2,4-dichlorophenoxyacetic acid)
• Dacarbazine
• Dantron (Chrysazin, 1,8-Dihydroxyanthraquinone)
• Daunomycin
• DDT (p,p'-DDT)
• N,N'-Diacetylbenzidine
• 2,4-Diaminoanisole
• 4,4'-Diaminodiphenyl ether
• 2,4-Diaminotoluene
• Dibenz[a,h]acridine
• Dibenz[c,h]acridine
• 7H-Dibenzo[c,g]carbazole
• Dibenzo[a,e]pyrene
• Dibenzo[a,h]pyrene
• Dibenzo[a,i]pyrene
• Dibromoacetic acid
• Dibromoacetonitrile
• 1,2-Dibromo-3-chloropropane
• 2,3-Dibromopropan-1-ol
• Dichloroacetic acid
• para-Dichlorobenzene
• 3,3'-Dichlorobenzidine
• 3,3'-Dichloro-4,4'-diaminodiphenyl ether
• 1,2-Dichloroethane
• 1,3-Dichloropropene (technical grade)
• 1,3-Dichloro-2-propanol
• Dichlorvos
• Diethanolamine
• Di(2-ethylhexyl)phthalate
• 1,2-Diethylhydrazine
• Diglycidyl resorcinol ether
• Digoxin
• Dihydrosafrole
• Diisopropyl sulfate
• 3,3'-Dimethoxybenzidine (o-Dianisidine)
• para-Dimethylaminoazobenzene
• trans-2-[(Dimethylamino)methylimino]-5-[2-(5-nitro-2-furyl)-vinyl]-1,3,4-oxadiazole
• 2,6-Xylidine (2,6-Dimethylaniline)
• Dimethylarsinic acid
• 3,3'-Dimethylbenzidine (o-Tolidine)
• 1,1-Dimethylhydrazine
• Dimethyl-p-toluidine
• 3,7-Dinitrofluoranthene
• 3,9-Dinitrofluoranthene
• 1,3-Dinitropyrene
• 1,6-Dinitropyrene
• 1,8-Dinitropyrene
• 2,4-Dinitrotoluene
• 2,6-Dinitrotoluene
• 1,4-Dioxane
• Disperse Blue 1

E

• 1,2-Epoxybutane
• Ethyl acrylate
• Ethylbenzene
• Ethylene dichloride
• Ethyl methanesulfonate

F

• Foreign bodies, implanted in tissues

Polymeric, prepared as thin smooth films (with the exception of poly(glycolic acid))

Metallic, prepared as thin smooth films

Metallic cobalt, metallic nickel and an alloy powder containing 66-67% nickel, 13-16% chromium and 7% iron

• 2-(2-Formylhydrazino)-4-(5-nitro-2-furyl)thiazole
• Fumonisin B1
• Furan

G

• Ginkgo biloba extract
• Glu-P-1 (2-Amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole)
• Glu-P-2 (2-Aminodipyrido[1,2-a:3',2'-d]imidazole)
• Glycidaldehyde
• Griseofulvin

H

• HC Blue No. 1
• Heptachlor
• Hexachlorobenzene
• Hexachloroethane
• Hexachlorocyclohexanes
• Hexamethylphosphoramide (HMPA)
• 2,4-Hexadienal
• Human immunodeficiency virus type 2 (infection with)
• Human papillomavirus types 26, 53, 66, 67, 70, 73, 82
• Human papillomavirus types 30, 34, 69, 85, 97
• Human papillomavirus types 5 and 8 (in patients with epidermodysplasia verruciformis)
• Hydrochlorothiazide
• 1-Hydroxyanthraquinone

I

• Indeno[1,2,3-cd]pyrene
• Iron-dextran complex
• Isoprene

J

• JC polyomavirus (JCV)

K

• Kava extract

L

• Lasiocarpine
• Lead

M

• Magnetic fields (extremely low frequency)
• MeA-α-C (2-Amino-3-methyl-9H-pyrido[2,3-b]indole)
• Medroxyprogesterone acetate
• MeIQ (2-Amino-3,4-dimethylimidazo[4,5-f]quinoline)
• MeIQx (2-Amino-3,8-dimethylimidazo[4,5-f]quinoxaline)
• Merphalan
• Methylarsonic acid
• 2-Methylaziridine (Propyleneimine)
• Methylazoxymethanol acetate
• 5-Methylchrysene
• 4,4'-Methylene bis(2-methylaniline)
• 4,4'-Methylenedianiline
• Methyleugenol
• 2-Methylimidazole
• 4-Methylimidazole
• Methyl isobutyl ketone
• Methylmercury compounds ¹
• 2-Methyl-1-nitroanthraquinone (uncertain purity)
• N-Methyl-N-nitrosourethane
• Methylthiouracil
• α-Methylstyrene
• Metronidazole
• Michler's base (4,4'-methylene-bis(N,N-dimethyl)benzenamine)
• Michler's ketone (4,4'-bis(dimethylamino)benzophenone)
• Microcystin-LR
• Mirex
• Mitomycin C
• Mitoxantrone
• 3-Monochloro-1,2-propanediol (3-MCPD)
• Monocrotaline
• 5-(Morpholinomethyl)-3-[(5-nitrofurfurylidene)amino]-2-oxazolidinone

N

• Nafenopin
• Naphthalene
• Nickel, metallic and alloys
• Niridazole
• Nitrilotriacetic acid and its salts ¹
• 5-Nitroacenaphthene
• 2-Nitroanisole
• 3-Nitrobenzanthrone
• Nitrobenzene
• Nitrofen (technical-grade)
• 2-Nitrofluorene
• 1-[(5-Nitrofurfurylidene)amino]-2-imidazolidinone
• N-[4-(5-Nitro-2-furyl)-2-thiazolyl]acetamide
• Nitrogen mustard N-oxide
• Nitromethane
• 2-Nitropropane
• 4-Nitropyrene
• N-Nitrosodi-n-butylamine
• N-Nitrosodiethanolamine
• N-Nitrosodi-n-propylamine
• 3-(N-Nitrosomethylamino)propionitrile
• N-Nitrosomethylethylamine
• N-Nitrosomethylvinylamine
• N-Nitrosomorpholine
• N-Nitrosopiperidine
• N-Nitrosopyrrolidine
• N-Nitrososarcosine

O

• Ochratoxin A
• Oil Orange SS
• Oxazepam

P

• Palygorskite (attapulgite) (long fibres, >5 µm)
• Panfuran S (containing dihydroxymethylfuratrizine)
• Parathion
• Pentosan polysulfate sodium
• Perfluorooctanoic acid
• Phenazopyridine hydrochloride
• Phenobarbital
• Phenolphthalein
• Phenoxybenzamine hydrochloride
• Phenyl glycidyl ether
• Phenytoin
• PhIP (2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine)
• Polychlorophenols and their sodium salts (mixed exposures)
• Ponceau MX
• Ponceau 3R
• Potassium bromate
• Primidone
• Progestins
• Progestogen-only contraceptives
• β-Propiolactone
• Propylene oxide
• Propylthiouracil
• Pulegone

R

• Radiofrequency electromagnetic fields, such as, but not limited to, those associated with wireless phones^[1]
• Refractory ceramic fibres
• Riddelliine

S

• Safrole
• Schistosoma japonicum (infection with)
• Silicon carbide, fibrous
• Sodium ortho-phenylphenate
• Special-purpose fibres such as E-glass and '475' glass fibres
• Sterigmatocystin
• Streptozotocin
• Styrene
• Sulfasalazine
• Sulfallate

T

• 1,1,1,2-Tetrachloroethane
• 1,1,2,2-Tetrachloroethane
• Tetrachlorvinphos
• Tetranitromethane
• Thioacetamide
• 4,4'-Thiodianiline
• Thiouracil
• Titanium dioxide
• Toluene diisocyanates
• Toxaphene (Polychlorinated camphenes)
• Triamterene
• Trichlormethine (Trimustine hydrochloride)
• Trichloroacetic acid
• Trp-P-1 (3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole)
• Trp-P-2 (3-Amino-1-methyl-5H-pyrido[4,3-b]indole)
• Trypan blue

U

• Uracil mustard

V

• Vanadium pentoxide
• Vinyl acetate
• 4-Vinylcyclohexene
• 4-Vinylcyclohexene diepoxide

Z

• Zalcitabine
• Zidovudine (AZT)