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Substance CAS Number(s) Health Factors
2,4,5-T 93-76-5 X
2,4,5-T, Butyl Ester 93-79-8  
TEDP 3689-24-5 X
TEPP 107-49-3 X
Talc (Containing no asbestos) 14807-96-6 X
Talc (Containing asbestos) 14807-96-6 X
Tannin 1401-55-4 X
Tantalum (metal, oxide dusts) 7440-25-7 X
Tellurium and compounds (as Te) 13494-80-9 X
Tellurium Hexafluoride (as Te) 7783-80-4 X
Temephos (Respirable Fraction) 3383-96-8 X
Temephos (Total Dust) 3383-96-8 X
Terbufos 13071-79-9 X
Tergitol NP-33 9016-45-9  
Terphenyls 92-94-4 X
alpha-Terpinene 99-86-5  
Terpineol 8006-39-1; 98-55-5  
Testosterone 58-22-0 X
Tetrabromobisphenol A 79-94-7  
1,2,3,5-Tetrachlorobenzene 634-90-2  
1,2,4,5-Tetrachlorobenzene 95-94-3  
Tetrachlorodibenzodioxin (All isomers except 2,3,7,8-TCDD)    
2,3,7,8-Tetrachlorodibenzo-p-Dioxin 1746-01-6 X
Tetrachlorodibenzofuran (All isomers except 2,3,7,8-TCDF)    
2,3,7,8-Tetrachlorodibenzofuran 51207-31-9  
1,1,1,2-Tetrachloro-2,2-Difluoroethane 76-11-9 X
1,1,2,2-Tetrachloro-1,2-Difluoroethane 76-12-0 X
1,1,2,2-Tetrachloroethane 79-34-5 X
Tetrachloroethylene 127-18-4 X
Tetrachloronaphthalene 1335-88-2 X
Tetrachlorophenol 25167-83-3  
Tetrachlorophthalic Anhydride 117-08-8  
Tetraethylene Glycol 112-60-7  
Tetraethylene Glycol Diacrylate 17831-71-9  
Tetraethyleneglycol Dimethacrylate 109-17-1  
Tetraethylenepentamine 112-57-2  
Tetraethyl Lead (as Pb) 78-00-2 X
Tetraethyl Tin 597-64-8  
1,1,1,2-Tetrafluoroethane 811-97-2 X
Tetrafluoroethylene 116-14-3 X
Tetrahydrobicyclopentadiene 2825-82-3  
Tetrahydrofuran 109-99-9 X
Tetrahydro-2-furanmethanol 97-99-4  
tetrahydrofurfuryl acrylate 2399-48-6 X
Tetrahydronaphthalene 119-64-2  
Tetrakis(methylene(3,5-di-t-butyl-4-hydroxyhydrocinnamte))methane 6683-19-8  
Tetramethrin 7696-12-0 X
1,2,3,4-Tetramethylbenzene 488-23-3  
1,2,3,5-Tetramethylbenzene 527-53-7  
1,2,4,5-Tetramethylbenzene 95-93-2  
Tetramethyl Butanediamine 97-84-7  
Tetramethyldiaminobenzophenone 90-94-8  
N,N,N',N'-Tetramethylethylenediamine 110-18-9  
Tetramethyl Lead (as Pb) 75-74-1 X
Tetramethyl Succinonitrile 3333-52-6 X
Tetranitromethane 509-14-8 X
Tetrasodium Pyrophosphate 7722-88-5  
Tetryl 479-45-8 X
Thallium, soluble compounds (as Tl) 7440-28-0 X
Thiabendazole 148-79-8 X
4,4'-Thiobis(6-tert-Butyl-m-Cresol) (Respirable Fraction) 96-69-5 X
4,4'-Thiobis(6-tert-Butyl-m-Cresol) (Total Dust) 96-69-5 X
Thioglycolic Acid 68-11-1 X
Thionyl Chloride 7719-09-7  
Thiophanate 23564-06-9 X
Thiophanate-methyl 23564-05-8  
Thiophene 110-02-1  
Thiourea 62-56-6 X
Thiram 137-26-8 X
Thorium 7440-29-1  
Thorium Dioxide 1314-20-1  
Thoron 132-33-2  
Tin, inorganic compounds (except oxides) (as Sn) 7440-31-5 X
Tin, organic compounds (as Sn) 56-35-9 (Bis(Tributyltin) Oxide); 76-87-9 (Triphenyltin Hydroxide); 77-58-7 (Dibutyltin Dilaurate); 78-04-6 (Dibutyltin Maleate); 301-10-0 (Stannous-2-Ethyl Hexanoate); 594-27-4 (Tetramethyl Tin) 1118-46-3 (Butyltin Trichloride); 1983-10-4 (Tributyltin Fluoride); 4342-36-3 (Tributyltin Benzoate) X
Tin Oxide (as Sn) (Total Dust) 21651-19-4 (Stannous Oxide (Synonyms: SnO; Tin(II) Oxide)); 18282-10-5 (Stannic Oxide (Synonyms: SnO2; Tin(IV) Oxide)) X
Titanium 7440-32-6  
Titanium Dioxide (Total Dust) 13463-67-7 X
Tobias Acid 81-16-3  
o-Tolidine 119-93-7 X
o-Tolidine Based Dyes 119-93-7 X
Tolualdehyde (o, m and p isomers) 529-20-4 (ortho); 620-23-5 (meta); 104-87-0 (para) X
Toluene 108-88-3 X
Toluene-2,4-Diamine 95-80-7 X
Toluene-2,6-Diamine 823-40-5  
Toluene-2,4-Diisocyanate (TDI) 584-84-9 X
Toluene-2,6-Diisocyanate 91-08-7 X
p-Toluenesulfonic Acid 104-15-4 X
Toluenesulfonyl Chloride 98-59-9  
m-Toluidine 108-44-1  
o-Toluidine 95-53-4 X
p-Toluidine 106-49-0  
o-Tolyl Isocyanate 614-68-6  
Torak 10311-84-9 X
Torula species   X
Total Fibers   X
Tremolite    
Trially Isocyanurate 1025-15-6  
Triamcinolone acetonide 76-25-5 X
Triazinetriethanol 4719-04-4  
Tribromoethylene 598-16-3  
Tributylamine 102-82-9  
Tributyl Phosphate 126-73-8 X
Tributylphosphorotrithioate 78-48-8 X
Trichlorfon 52-68-6 X
Trichloroacetic Acid 76-03-9 X
1,2,3-Trichlorobenzene 87-61-6  
1,2,4-Trichlorobenzene 120-82-1 X
1,3,5-Trichlorobenzene 108-70-3  
1,1,2-Trichloroethane 79-00-5 X
Trichloroethylene 79-01-6 X
N-(Trichloromethylthio)phthalimide 133-07-3  
Trichloronaphthalene 1321-65-9 X
Trichlorophenol 25167-82-2; 95-95-4; 88-06-2 X
1,2,3-Trichloropropane 96-18-4 X
2,3,6-Trichlorotoluene 2077-46-5  
1,1,1-Trichloro-2,2,2-Trifluoroethane 354-58-5  
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 X
Trichoderma species   X
1-Tridecanol 112-70-9  
Tri(Dimethylaminomethyl)phenol 90-72-2 X
Triethanolamine 102-71-6  
Triethylamine 121-44-8 X
Triethylbenzenes 25340-18-5  
Triethylenediamine 280-57-9  
Triethylene Glycol 112-27-6  
Triethylene glycol monobutyl ether 143-22-6 X
Triethylene glycol monoethyl ether 112-50-5 X
Triethylenetetramine 112-24-3  
Triethyl Phosphate 78-40-0  
Trifluoroacetic anhydride 407-25-0  
Trifluorobromomethane 75-63-8 X
1,1,1-Trifluoroethane 420-46-2  
2,2,2-Trifluoroethanol 75-89-8  
Trifluralin 1582-09-8  
1,3,5-Triglycidyl Isocyanurate 2451-62-9 X
Triisopropylated Phenyl Phosphate 68937-41-7  
Trimellitic Acid 528-44-9  
Trimellitic Anhydride 552-30-7  
Trimethylamine 75-50-3 X
Trimethylbenzene (mixed isomers) 25551-13-7 X
Trimethylolethane Trinitrate 3032-55-1  
Trimethylolpropane Triacrylate 15625-89-5  
Trimethyl orthobenzoate 707-07-3  
2,2,4-Trimethyl-1,3-pentanediol diisobutyrate 6846-50-0 X
2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate 25265-77-4 X
2,4,4-Trimethyl Pentene 25157-70-8  
Trimethyl Phosphite 121-45-9  
Trimethylsilanol 1066-40-6  
2,4,7-Trinitro-9-fluorenone 129-79-3  
2,4,6-Trinitrotoluene 118-96-7 X
Triorthocresyl Phosphate 78-30-8 X
Triphenylamine 603-34-9  
Triphenylmethane Triisocyanate 2422-91-5  
Triphenyl Phosphate 115-86-6 X
Tripropylene Glycol Diacrylate 42978-66-5  
Tris(2-Methyl-1-aziridinyl)phosphine Oxide 57-39-6  
Trypsin 9002-07-7  
Tungsten (as W) Insoluble Compounds 7440-33-7 X
Tungsten (as W) Soluble Compounds 7440-33-7 X
Turpentine 8006-64-2 X
Tylenol 103-90-2