124861-93-4 4-Oxo-4-(2-thiazolylamino)butanoic acid (phenylmethylene)hydrazide BRN 4202257 Butanoic acid, 4-oxo-4-(2-thiazolylamino)-, (phenylmethylene)hydrazide Succinic 2-thiazolylamide benzylidene hydrazide