3-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxo-3-pyridyl)azo]phenyl dimethylsulphamate

Dimethylamidosulfuric acid 3-[[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxopyridin)-3-yl]azo]phenyl ester