CAS # Acutely Toxic Chemicals 57-14-7 1,1-Dimethylhydrazine 107-20-0 2-Chloroacetaldehyde 107-07-3 2-Chloroethanol 60-24-2 2-Mercaptoethanol 1393-62-0 Abrin 75-07-0 Acetaldehyde 75-86-5 Acetone cyanohydrin 107-02-8 Acrolein (2-Propenal) 79-10-7 Acrylic acid 107-13-1 Acrylonitrile (2-Propenenitrile) 814-68-6 Acryloyl chloride 1402-68-2 Aflatoxins 107-18-6 Allyl alcohol (2-Propen-l-ol) 2937-50-0 Allyl chloroformate 7664-41-7 Ammonia 7440-38-2 Arsenic 784-36-3 Arsenic Pentaflouride Gas 7784-34-1 Arsenic trichloride 7784-42-1 Arsine 71-43-2 Benzene 98-88-4 Benzoyl chloride 100-44-7 Benzyl chloride 10294-33-4 Boron tribromide 10294-34-5 Boron trichloride 7726-95-6 Bromine 7789-30-2 Bromine pentafluoride 7787-71-5 Bromine Trifluoride 75-15-0 Carbon disulfide 630-08-0 Carbon monoxide 463-58-1 Carbonyl sulfide 7782-50-5 Chlorine 10049-04-4 Chlorine dioxide 13637-63-3 Chlorine pentafluoride 7790-91-2 Chlorine trifluoride 78-95-5 Chloroacetone, stabilized 79-04-9 Chloroacetyl Chloride 107-30-2 Chloromethyl methyl ether 76-06-2 Chloropicrin 7790-94-5 Chlorosulfonic acid 11028-71-0 Concanavalin A 4170-30-3 Crotonaldehyde 80-15-9 Cumene hydroperoxide 460-19-5 Cyanogen 506-68-3 Cyanogen bromide 506-77-4 Cyanogen chloride 675-14-9 Cyanuric fluoride 66-81-9 Cycloheximide 3173-53-3 Cyclohexyl isocyanate 2270-40-8 Diacetoxyscirpenol 19287-45-7 Diborane 4109-96-0 Dichlorosilane 674-82-8 Diketene 624-92-0 Dimethyl disulfide 593-74-8 Dimethyl mercury 77-78-1 Dimethyl sulfate 75-78-5 Dimethyldichlorosilane 10544-72-6 Dinitrogen tetroxide 106-89-8 Epichlorohydrin 541-41-3 Ethyl chloroformate 75-21-8 Ethylene oxide 7681-49-4 Flourine Gas 7782-41-4 Fluorine 50-00-0 Formaldehyde (Formalin) (Paraformaldeyde) 7782-65-2 Germane 87-68-3 Hexachlorobutadiene 77-47-4 Hexachlorocyclopentadiene 684-16-2 Hexafluoroacetone 302-01-2 Hydrazine 7664-39-3 Hydrofluoric acid (HF Solutions) 10035-10-6 Hydrogen bromide (gas) 7647-01-0 Hydrogen chloride (gas) 74-90-8 Hydrogen cyanide (gas) CAS # Acutely Toxic Chemicals 7664-39-3 Hydrogen fluoride (gas) 7722-84-1 Hydrogen peroxide solutions 35% and greater 2148-90-9 Hydrogen selenide 2148-87-8 Hydrogen sulfide 7553-56-2 Iodine 7783-66-6 Iodine pentafluoride 13463-40-6 Iron, Pentacarbonyl 543-27-1 Isobutyl chloroformate 78-82-0 Isobutyronitrile 108-23-6 Isopropylchloroformate 7783-34-8 Mercuric nitrate 78-85-3 Methacrylaldehyde 126-98-7 Methacrylonitrile (2- Propenenitrile, 2-methyl-) 30674-80-7 Methacryloyloxyethyl Isocyanate 74-83-9 Methyl bromide 79-22-1 Methyl chloroformate 60-34-4 Methyl hydrazine 624-83-9 Methyl isocyanate 74-93-1 Methyl mercaptan 676-97-1 Methyl phosphonic dichloride 78-94-4 Methyl vinyl ketone 74-89-5 Methylamine 993-00-0 Methylchlorosilane 75-79-6 Methyltrichlorosilane 28289-54-5 MPTP (1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine) 592-34-7 n-Butyl chloroformate 111-36-4 n-Butyl isocyanate 13463-39-3 Nickel carbonyl 7697-37-2 Nitric acid 10102-43-9 Nitric oxide 10102-44-0 Nitrogen Dioxide 109-61-5 N-Propyl chloroformate 8014-95-7 Oleum (Fuming Sulfuric acid) 20816-12-0 Osmium Tetroxide 7783-41-7 Oxygen Difluoride (Fluorine Monoxide) 10028-15-6 Ozone 30525-89-4 Paraformaldehyde 311-45-5 Paraoxon 19624-22-7 Pentaborane 79-21-0 Peracetic Acid 7601-90-3 Perchloric Acid 108-95-2 Phenol 103-71-9 Phenyl isocyanate 75-44-5 Phosgene 7803-51-2 Phosphine 10025-87-3 Phosphorus oxychloride (Phosphoryl chloride) 7719-12-2 Phosphorus trichloride 151-50-8 Potassium Cyanide 75-56-9 Propylene Oxide 9009-86-3 Ricin 107-44-8 Sarin 7783-79-1 Selenium hexafluoride 7783-61-1 Silicon tetrafluoride 26628-22-8 Sodium azide (Hydrazoic acid) 7758-19-2 Sodium chlorite 143-33-9 Sodium Cyanide 1313-59-3 Sodium oxide 1313-60-6 Sodium peroxide 7803-52-3 Stibine 75-59-2 Tetramethylammonium hydroxide solution (TMAH) 75-74-1 Tetramethyl lead 681-84-5 Tetramethyl orthosilicate 4368-28-9 Tetrodotoxin 7440-28-0 Thallium 463-71-8 Thiophosgene 7550-45-0 Titanium tetrachloride 584-84-9 Toluene-2,4-diisocyanate (unspecified isomer) 2487-90-3 Trimethoxysilane 75-77-4 Trimethylchlorosilane 1493-13-6 Trifluoromethanesulfonic acid (TFMS or TMSA) 7783-82-6 Tungsten hexafluoride Probably Known CAS # Carcinogenic Chemicals 13909-09-6 1-(2-Chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea (Semustine) Yes 57-14-7 1,1-Dimethylhydrazine Yes 96-18-4 1,2,3-Trichloropropane Yes 106-93-4 1,2-Dibromoethane (Ethylene Dibromide) Yes 107-06-2 1,2-Dichloroethane Yes 1615-80-1 1,2-Diethylhydrazine Yes 540-73-8 1,2-Dimethylhydrazine Yes 106-99-0 1,3-Butadiene Yes 542-75-6 1,3-Dichloropropene Yes 1120-71-4 1,3-Propanesultone Yes 123-91-1 1,4-Dioxane Yes 75321-20-9 1,3-Dinitropyrene Yes 42397-64-8 1,6-Dinitropyrene yes 42397-65-9 1,8-Dinitropyrene Yes 129-43-1 1-Hydroxyanthraquinone Yes 3296-90-0 2,2-Bis(bromomethyl)propane-1,3-diol Yes 1746-01-6 2,3,7,8-Tetrachlorodibenzo-para-dioxin Yes 96-13-9 2,3-Dibromo-1-propanol Yes 88-06-2 2,4,6-Trichlorophenol Yes 95-80-7 2,4-Diaminotoluene Yes 606-20-2 2,6-Dinitrotoluene Yes 91-59-8 2-Naphthylamine Yes 91-23-6 2-Nitroanisole Yes 101-68-8 4,4-Methylenediphenyl diisocyanate Yes 75-07-0 Acetaldehyde Yes 79-06-1 Acrylamide Yes 107-13-1 Acrylonitrile (2-Propenenitrile) Yes 1402-68-2 Aflatoxins Yes 134-32-7 alpha-Naphthylamine Yes 62-53-3 Aniline Yes 7440-38-2 Arsenic Yes 1332-21-4 Asbestos Yes 103-33-3 Azobenzene Yes 71-43-2 Benzene Yes 92-87-5 Benzidine Yes 100-44-7 Benzyl chloride yes 7440-41-7 Beryllium and beryllium compounds Yes 75-25-2 Bromoform Yes Cadmium compounds Yes 56-23-5 Carbon tetrachloride Yes 67-66-3 Chloroform [Methane, trichloro-] Yes 107-30-2 Chloromethyl methyl ether Yes Chromium [VI] Compunds Yes Probably Known CAS # Carcinogenic Chemicals 11026-22-9 Cobalt nitrate Yes 14808-60-7 Crystalline Silica Yes 75-09-2 Dichloromethane yes 593-74-8 Dimethyl mercury Yes 77-78-1 Dimethyl sulfate Yes 25321-14-6 Dinitrotoluene Yes 106-89-8 Epichlorohydrin Yes 75-21-8 Ethylene oxide Yes 50-00-0 Formaldehyde (Formalin) (Paraformaldeyde) Yes 110-00-9 Furan Yes 1303-00-0 Gallium arsenide Yes 680-31-9 Hexamethyl phosphoramide Yes 302-01-2 Hydrazine Yes 78-79-5 Isoprene Yes 7439-92-1 Lead compounds, inorganic Yes 75-09-2 Methylene Chloride (dichloromethane) Yes 108-10-1 Methyl iso-butyl ketone Yes 91-20-3 Naphthalene Yes 13463-39-3 Nickel carbonyl Yes 7440-02-0 Nickel compounds Yes 75-52-5 Nitromethane Yes 70-25-7 N-Methyl-N´-nitro-N-nitrosoguanidine (MNNG) Yes 55-18-5 N-Nitrosodiethylamine Yes 30525-89-4 Paraformaldehyde Yes 77-09-8 Phenolphthalein Yes Polychlorinated biphenyls (PCBs) - all forms Yes 75-56-9 Propylene Oxide Yes 509-14-8 Tetranitromethane (Methane, tetranitro-) Yes 79-01-6 Trichloroethylene Yes 75-01-4 Vinyl chloride Yes 1330-20-7 Xylenes Yes Female Fetal Male CAS # Reproductive Toxicity Chemicals 606-20-2 2,6-Dinitrotoluene Yes 79-06-1 Acrylamide Yes Yes Yes 107-13-1 Acrylonitrile (2-Propenenitrile) Yes Yes Yes 62-53-3 Aniline Yes 75-15-0 Carbon disulfide Yes Yes Yes 630-08-0 Carbon monoxide Yes Yes 67-66-3 Chloroform [Methane, trichloro-] Yes 10026-22-9 Cobalt nitrate Yes 66-81-9 Cycloheximide Yes 106-93-4 1,2-Dibromoethane (Ethylene Dibromide) Yes 111-96-6 Diethylene glycol diemethyl ether Yes 593-74-8 Dimethyl mercury Yes 25321-14-6 Dinitrotoluene Yes 110-80-5 Ethylene glycol monoethyl ether (2-ethoxyethanol) Yes Yes Yes 109-86-4 Ethylene glycol monomethyl ether (2-methoxyethanol) Yes Yes Yes 75-21-8 Ethylene oxide Yes 75-12-7 Formamide Yes Yes Yes 684-16-2 Hexafluoroacetone Yes 7439-92-1 Lead compounds, inorganic Yes Yes Yes 108-10-1 Methyl iso-butyl ketone Yes 109-72-8 n-Butyllithium solutions Yes 13478-00-7 Nickel (II) nitrate Yes 13463-39-3 Nickel carbonyl Yes 108-95-2 Phenol Yes 77-09-8 Phenolphthalein Yes Yes Yes 00-01-0 Polychlorinated biphenyls (PCBs) - all forms Yes Yes Yes 16940-66-2 Sodium borohydride Yes 108-88-3 Toluene Yes Yes 106-96-7 3-Bromopropyne (Propargyl bromide), 80% Toluene Yes Yes CAS # Reactive Chemicals Comments Health Fire Reactivity 123-91-1 1,4-Dioxane Peroxide Former 2 3 1 2786-07-4 2-Thienyllithium Water Reactive 3 3 1 105-57-7 Acetal Peroxide Former 1 3 0 75-07-0 Acetaldehyde Peroxide Former 2 4 2 75-36-5 Acetyl chloride Water Reactive 3 3 2 110-22-5 Acetyl peroxide Organic Peroxide 3 2 4 74-86-2 Acetylene gas Flammable Gas 0 4 3 7727-15-3 Aluminum bromide Water Reactive 3 0 0 7446-70-0 Aluminum chloride Water Reactive 3 0 2 20859-73-8 Aluminum phosphide Water Reactive 4 4 2 7789-09-5 Ammonium dichromate Strong Oxidizer 2 1 1 6484-52-2 Ammonium nitrate Strong Oxidizer 2 0 3 7790-98-9 Ammonium perchlorate Strong Oxidizer 1 0 4 131-74-8 Ammonium picrate, dry Explosive 3 3 3 100-66-3 Anisole Peroxide Former 1 2 0 98-88-4 Benzoyl chloride Water Reactive 3 2 2 94-36-0 Benzoyl peroxide Organic Peroxide 2 3 3 7637-07-2 Boron trifluoride Water Reactive 4 0 1 7440-70-2 Calcium (powder form) Pyrophoric 3 1 2 75-20-7 Calcium carbide Water Reactive 3 3 2 7789-78-8 Calcium hydride Water Reactive 2 3 2 10124-37-5 Calcium nitrate Strong Oxidizer 2 0 1 1305-99-3 Calcium phosphide Water Reactive 3 4 2 7440-46-2 Cesium Pyrophoric 3 4 2 13637-63-3 Chlorine pentafluoride Water Reactive 2 0 3 80-15-9 Cumene hydroperoxide Explosive 1 2 4 80-43-3 Cumene peroxide Explosive 2 1 4 91-17-8 Decahydronaphthalene peroxide former 2 2 0 87-31-0 Diazodinitrophenol Explosive 2 1 4 103-50-4 Dibenzyl ether Peroxide Former 1 1 0 19287-45-7 Diborane Pyrophoric 4 4 3 77-73-6 Dicyclopentadiene Peroxide Former 3 3 1 60-29-7 Diethyl ether Peroxide Former 1 4 1 557-20-0 Diethyl zinc Pyrophoric 3 4 3 111-96-6 Diethylene glycol diemethyl ether Peroxide Former 1 2 1 1191-15-7 Diisobutylaluminum hydride Pyrophoric