(E)-tert-Butyl (3-(2-methoxyethyl)-4-oxo-1,3,8-triazaspiro[4.5]decan-2-ylidene)carbamate oxalate 250mg

(E)-tert-Butyl (3-(2-methoxyethyl)-4-oxo-1,3,8-triazaspiro[4.5]decan-2-ylidene)carbamate oxalate 250mg