38249-71-7 Antibiotic K16 Antibiotic potassium 16 K16 Malonomicin Malonomycin Propanedioic acid, ((2-amino-3-hydroxy-1-oxopropyl)amino)(2-(5-(aminomethyl)-2,5-dihydro-4-hydroxy-2-oxo-1H-pyrrol-3-yl)-2-oxoethyl)-