# Species Formula 2488 trans-1,2-DichloroethyleneC2H2Cl2 2489 trans-DichloroethyleneC2H2Cl2 2490 1,1-DichloroethaneC2H4Cl2 2491 1,1-Dichloroethane (Geo)C2H4Cl2 2492 trans-1,2-DichloroethaneC2H4Cl2 2493 trans-1,2-Dichloroethane (Geo)C2H4Cl2 2494 1,2-DichloropropaneC3H6Cl2 2495 1,2-DichlorobenzeneC6H4Cl2 2496 1,3-DichlorobenzeneC6H4Cl2 2497 1,4-DichlorobenzeneC6H4Cl2 2498 Be(II)Cl2N2 (MECYBC) (Geo) H6BeC4N2Cl2 2499 Be(II)Cl2N2 (MECYBC)H6BeC4N2Cl2 2500 Be(II)Cl2N2 (VALHAS) (Geo)H22BeC8N2Cl2 2501 Be(II)Cl2N2 (VALHAS)H22BeC8N2Cl2 2502 Chlorine monoxideOCl2 2503 Cl2O (Geo)OCl2 2504 Carbonyl chlorideCOCl2 2505 Carbonyl chloride (Geo)COCl2 2506 MethoxydichloroboraneH3BCOCl2 2507 Be(II)Cl2 (ETBECL) (Geo)H10BeC4OCl2 2508 Be(II)Cl2 (ETBECL)H10BeC4OCl2