Sodium; {[5-amino-6-(7-amino-6-methoxy-5,8-dioxo-5,8-dihydro-quinolin-2-yl)-4-(2-hydroxy-3,4-dimethoxy-phenyl)-3-methyl-pyridine-2-carbonyl]-amino}-acetate
streptonigrin 2-N-(mehtylcarboxylmethyl)amide
streptonigrin 2-N-(N,N-dimehtylaminopropyl)amide
streptonigrin 2-amide
streptonigrin 2-hydroxamic acid