6798-24-9 Isometamidium chloride hydrochloride Isometamidium hydrochloride NSC524503 Phenanthridinium, 3-amino-8-[3-[3-(aminoiminomethyl)phenyl]-1-triazenyl]-5-ethyl-6-phenyl-, chloride, monohydrochloride Phenanthridinium, 8-[3-(m-amidinophenyl)-2-triazeno]-3-amino-5-ethyl-6-phenyl-, chloride, monohydrochloride Samorin