2,2'-Ethylenebis(1-(m-chlorophenyl)-2-thiopseudourea) dihydrobromide 854-41-1 Ethylene-bis-m-chlorophenyl isothiuronium dihydrobromide Pseudourea, 2,2'-ethylenebis(1-(m-chlorophenyl)-2-thio-, dihydrobromide