52195-07-0 52554-24-2 Antimonate(2-), bis(mu-(2,3-dihydroxybutanedioato(4)-O(sup 1),O(sup 2),O(sup 3),O(sup 4)))di-, stereoisomer, dihydrogen, compd. with piperazine (1:1) Bilharcid Piperazine diantimony tartrate