| 4-[(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo]-N-(2-ethylhexyl)-Benzenesulfonamide |
| 1-Butyl-5-[[4-[[(2-ethylhexyl)amino]sulfonyl]phenyl]azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile |
| 4-[(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-benzenesulfonamid |
| pyridinyl)azo]-n-(2-ethylhexyl)- |
| 4-[(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo]-n-(2-ethylhexyl)-benzenesulfonamid |
| Benzenesulfonamide,4-[(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo]-N-(2-ethylhexyl)- |
