3-[(5-Cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxopyridin-3-yl)azo]benzenesulfonic acid phenyl ester
CAS No. 36139-27-2
3-[(5-Cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxopyridin-3-yl)azo]benzenesulfonic acid phenyl ester