39978-45-5 BRN 1334625 DL-Norleucine, N-(2-thienylcarbonyl)-, (3-(5-nitro-2-furanyl)-2-propenylidene)hydrazide N(sup 1)-(2'-Thenoylnor(+-)leucyl)-N(sup 2)-(5''-amino-2''-furylacrylidene)hydrazine N-(2-Thienylcarbonyl)-DL-norleucine (3-(5-nitro-2-furanyl)-2-propenylidene)hydrazide