1,4-Bis(2'-chloroethyl)-1,4-diazabicyclo(2.2.1)heptane 1,4-Bis(2-chloroethyl)-1,4-diazoniabicyclo(2.2.1)heptane dichloride 1,4-Diazoniabicyclo(2.2.1)heptane, 1,4-bis(2-chloroethyl)-, dichloride (8CI)(9CI)(MF1) 1020-94-6 15567-82-5 NSC 261108