Levosimendan Impurity 13

Chemical Name: (E)-4-(4-(2-(2-Amino-1-cyano-2-oxoethylidene)hydrazinyl)phenyl)-3-methyl-4-oxobutanoic acid

Synonym: (4R,5S)-3-(((3S,5S)-5-(bis(methyl-d3)carbamoyl)pyrrolidin-3-yl)thio)-5-((1S,2R)-1-carboxy-2-hydroxypropyl)-4-methyl-4,5-dihydro-1H-pyrrole-2-carboxylic acid