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| # | Species | Formula |
| 1232 | 2,4,6-Trinitroanisole | C7H5N3O7 | |
| 1233 | 2,4,6-Trinitrophenetole | C8H7N3O7 | |
| 1234 | Tetraethylpyromellitate | C18H22O8 | |
| 1235 | Tetrapropyl 1,2,4,5-benzene tetracarboxylate | C22H30O8 | |
| 1236 | Tetranitromethane | CN4O8 | |
| 1237 | Glycerol trinitrate | C3H5N3O9 | |
| 1238 | Pentaerythritol tetranitrate | C5H8N4O12 | |
| 1239 | Hexanitroethane | C2N6O12 | |
| 1240 | Bis(2,2,2-trinitroethyl)-amine | C4H5N7O12 | |
| 1241 | Fluorine, 2S(g) 2s(1)2p(6) | F | |
| 1242 | Fluorine, atom | F | |
| 1243 | Fluoride, anion | F | |
| 1244 | Hydrogen fluoride (Geo) | HF | |
| 1245 | Hydrogen fluoride | HF | |
| 1246 | Fluoromethylidyne (Geo) | CF | |
| 1247 | Fluoromethylidyne | CF | |
| 1248 | Fluoromethylene (Geo) | HCF | |
| 1249 | Fluoromethyl, cation | CH2F | |
| 1250 | Fluoromethane (Geo) | CH3F | |
| 1251 | Fluoromethane | CH3F | |
| 1252 | Fluoroacetylene (Geo) | HC2F | |
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