1,4-Butylene-bis-m-chlorophenyl isothiuronium dihydrobromide 2,2'-Butylenebis(1-(m-chlorophenyl)-2-thiopseudourea) dihydrobromide 908-20-3 Pseudourea, 2,2'-butylenebis(1-(m-chlorophenyl)-2-thio-, dihydrobromide