1-(p-(1-(Aminohydrazinylidene)ethyl)phenyl)biguanide dihydrochloride 2964-25-2 BIGUANIDE, 1-(p-ACETYLPHENYL)-, AMIDINOHYDRAZONE, DIHYDROCHLORIDE Ciba 23889 Ba p-Biguanidoacetophenone-guanylhydrazone dihydrochloride