| 1 | 421-00-1 | 2,2-Difluoropropylamine hydrochloride | C3H7F2N | 95.09 | | |
| 2 | 421-01-2 | 2-bromo-1-chloro-1,1-difluoro-ethane | C2H2BrClF2 | 179.39 | -75.9°C | |
| 3 | 421-02-3 | Hydrochlorofluorocarbon-262 (HCFC-262) | C3H5ClF2 | 114.5216064 | | |
| 4 | 421-04-5 | 1-chloro-1,1,2-trifluoro-ethane | C2H2ClF3 | 118.49 | | |
| 5 | 421-05-6 | CHLORODIFLUOROACETONITRILE | C2ClF2N | 111.48 | | |
| 6 | 421-06-7 | 2-bromo-1,1,1-trifluoroethane | C2H2BrF3 | 162.94 | -94°C | |
| 7 | 421-07-8 | 1,1,1-TRIFLUOROPROPANE | C3H5F3 | 98.07 | -148°C | |
| 8 | 421-09-0 | (trifluoromethyl)mercuric bromide | | | | |
| 9 | 421-10-3 | Mercury, chloro(trifluoromethyl)- | CClF3Hg | 305.049 | | |
| 10 | 421-11-4 | Mercury, iodo(trifluoromethyl)- | | | | |
| 11 | 421-14-7 | TRIFLUOROMETHYL METHYL ETHER | C2H3F3O | 100.04 | -149°C | |
| 12 | 421-15-8 | Methane, chlorodifluoro(methylthio)- | C2H3ClF2S | 132.56 | | |
| 13 | 421-17-0 | TRIFLUOROMETHYLSULPHENYL CHLORIDE | CClF3S | 136.52 | | |
| 14 | 421-20-5 | Methyl Fluorosulfonate | CH3FO3S | 114.1 | | |
| 15 | 421-26-1 | Ethanimidamide, 2,2,2-trifluoro-, acetate (1:1) | C2H4O2.C2H3F3N2 | | | |
| 16 | 421-29-4 | Benzenamine, 2,2,2-trifluoroacetate (1:1) | C6H7N.C2HF3O2 | | 120 °C | |
| 17 | 421-31-8 | dimethyl-(trifluoromethyl)arsane | C3H6AsF3 | | | |
| 18 | 421-32-9 | Dichloro(trifluoromethyl)arsine | | | | |
| 19 | 421-36-3 | 1,2-DIBROMO-1-CHLORO-2,2-DIFLUOROETHANE | C2HBr2ClF2 | 258.29 | | |
| 20 | 421-41-0 | HCFC-251 | C3H4Cl3F | 165.4212632 | | |
| 21 | 421-43-2 | Propane, 2-bromo-1-chloro-1,1-difluoro- | C3H4BrClF2 | 193.42 | | |
| 22 | 421-45-4 | Acetyl bromide, 2-chloro-2,2-difluoro- | C2 Br Cl F2 O | 193.37 | | |
| 23 | 421-46-5 | 2-BROMO-1,1,1-TRIFLUOROPROPANE | C3H4BrF3 | 176.96 | | |
| 24 | 421-47-6 | Propane, 2-chloro-1,1,1-trifluoro- | C3H4ClF3 | 132.51 | | |
| 25 | 421-48-7 | 1,1,1,2-Tetrafluoropropane | C3H4F4 | 116.06 | | |
| 26 | 421-49-8 | 1,1,1-Trifluoro-isopropylamine | C3H6F3N | 113.08 | 0°C | |
| 27 | 421-50-1 | 1,1,1-trifluoroacetone | C3H3F3O | 112.05 | -78 °C | Miscible |
| 28 | 421-52-3 | 2,2,2-trifluoroethanethioamide | C2H2F3NS | 129.10 | | |
| 29 | 421-53-4 | trifluoroacetaldehyde hydrate | C2H3F3O2 | 116.04 | 69-70℃ | Soluble in water. |
| 30 | 421-54-5 | Phosphine, (2-chloro-1,1,2-trifluoroethyl)- | C2H3ClF3P | 150.47 | | |
| 31 | 421-58-9 | (TRIFLUOROMETHYL)DICHLOROPHOSPHINE | CCl2F3P | 170.89 | | |
| 32 | 421-62-5 | dimethyl-(trifluoromethyl)stibane | C3H6F3Sb | | | |
| 33 | 421-69-2 | 1,2-Dichloro-1,2-dibromo-1,2-difluoroethane | | | | |
| 34 | 421-70-5 | 1-Bromo-2-Iodotetrafluoroethane, Stab. With Copper | C2BrF4I | 306.82 | | |
| 35 | 421-73-8 | 2-Chloro-1,1,1,2-tetrafluoropropane | C3H3ClF4 | 150.5 | | |
| 36 | 421-75-0 | 1-Chloro-1,1,2,2-tetrafluoropropane | C3H3F4Cl | 150.5 | | |
| 37 | 421-78-3 | 1-CHLORO-2-IODOTETRAFLUOROETHANE | C2ClF4I | 262.37 | | |
| 38 | 421-82-9 | Trifluoro(methanesulfonyl)methane | C2H3F3O2S | 148.1 | | |
| 39 | 421-83-0 | Trifluoromethanesulfonyl chloride | CClF3O2S | 168.52 | -26 °C | Hydrolyzes with water. |
| 40 | 421-85-2 | Trifluoromethanesulphonamide | CH2F3NO2S | 149.09 | 120-124°C(lit.) | Soluble in water. |
| 41 | 421-90-9 | 1,2,2-TRIBROMO-3,3,3-TRIFLUOROPROPANE | C3H2Br3F3 | 334.76 | | |
| 42 | 421-92-1 | 2,3-DIBROMO-1,1,1,2-TETRAFLUOROPROPANE | C3H2Br2F4 | 273.85 | | |
| 43 | 421-94-3 | HCFC-231 | C3H2Cl5F | 234.3113832 | | |
| 44 | 421-95-4 | Propane, 1,2,3-trichloro-1,1,2-trifluoro- | C3H2Cl3F3 | 201.4 | | |
| 45 | 421-99-8 | 1,1,3-Trichloro-1,2,2-trifluoropropane | C3H2F3Cl3 | 201.4 | | |