(mixed isomers) C9H6O2N2 26471-62-5 2,4-二異氰酸甲苯 註7 Toluene-2,4-diisocyanate C6H3CH3(NCO)2 584-84-9 1,2-二氯乙烷 1,2-Dichloroethane ( Ethylene dichloride) CH2ClCH2Cl 107-06-2 1,1,2,2- 四氯乙烷 1,1,2,2-Tetrachloroethane CHCl2CHCl2 79-34-5 1,2-二氯乙烯 1,2-...