Methyl dichlorophosphate677-24-7100 % similar Diphosphoryl chloride13498-14-153 % similar Ethyl phosphorodichloridate1498-51-743 % similar Trimethyl phosphate512-56-142 % similar Dimethyl methylphosphonate756-79-638 % similar Dimethyl chlorothiophosphate2524-03-036 % similar Dimethyl phosphate813-78-536 % similar Dichlorvos62-73-731 % similar 4-Chlorophenyl phosphorodichloridate772-79-231 % similar Chlorofos52-68-630 % similar