1(2H)-Pyridazinebutanamide, tetrahydro-N-hydroxy-6-(((2-methyl-1-(1-oxopropyl)butyl)amino)carbonyl)-gamma-oxo-beta-pentyl- 140923-32-6 Matlystatin B SF 2197 Tetrahydro-N-hydroxy-6-(((2-methyl-1-(1-oxopropyl)butyl)amino)carbonyl)-gamma-oxo-beta-pentyl-1(2H)-pyridazinebutanamide