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| # | Species | Formula |
| 2598 | B4Cl4 (Geo) | B4Cl4 | |
| 2599 | Carbon tetrachloride | CCl4 | |
| 2600 | Carbon tetrachloride (Geo) | CCl4 | |
| 2601 | Tetrachloroethylene (Geo) | C2Cl4 | |
| 2602 | Tetrachloroethylene | C2Cl4 | |
| 2603 | 1,1,2,2-Tetrachloroethane | C2H2Cl4 | |
| 2604 | 1,2,2,2-Tetrachloroethane | C2H2Cl4 | |
| 2605 | 1,2,3,4-Tetrachlorobenzene | C6H2Cl4 | |
| 2606 | 1,2,3,5-Tetrachlorobenzene | C6H2Cl4 | |
| 2607 | 1,2,4,5-Tetrachlorobenzene | C6H2Cl4 | |
| 2608 | Trichloroacetyl chloride | C2O2Cl4 | |
| 2609 | 2,3,5,6-Tetrachloro-1,4-benzoquinone | C6O2Cl4 | |
| 2610 | 2,3,5,6-Tetrachloro-1,4-benzoquinone (Geo) | C6O2Cl4 | |
| 2611 | Mg(II)Cl4(2-) (DUPCOG) (Geo) | MgCl4 | |
| 2612 | Mg(II)Cl4(2-) (DUPCOG) | MgCl4 | |
| 2613 | Magnesium dichloride, dimer | Mg2Cl4 | |
| 2614 | Al(III)Cl4(-) (CALZUK) (Geo) | AlCl4 | |
| 2615 | Al(III)Cl4(-) (CALZUK) | AlCl4 | |
| 2616 | LiAlCl4 | LiAlCl4 | |
| 2617 | Al(III)CCl3 (MALCLD) (Geo) | C2H6Al2Cl4 | |
| 2618 | Al(III)CCl3 (MALCLD) | C2H6Al2Cl4 | |
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