1,4-Diazabicyclo[2.2.1]heptane, 1,4-diazoniabicyclo[2.2.1] heptane deriv. 1,4-Diazoniabicyclo[2.2.1]heptane, 1,4-bis(2-chloroethyl)-, salt with phosphonoacetic acid (1:2) 79235-03-3 Acetic acid, phosphono-, ion(1-), compd. with 1,4-bis(2-chloroethyl)-1,4-diazoniabicyclo[2.2.1]heptane (2:1) NSC332989