3,17-Dibutyryloxy-2,16-dipiperidinoandrostane dimethobromide 3alpha,17beta-Dibutyryloxy-2beta,16beta-dipiperidino-5alpha-androstane dimethobromide 73319-20-7 DBDAD Piperidinium, 1,1'-((2beta,3alpha,5alpha,16beta,17beta)-3,17-bis(1-oxobutoxy)androstane-2,16-diyl)bis(1-methyl-, dibromide