N-(6-methyl-9,10,10-trioxothioxanthen-3-yl)acetamide
N-(6-methyl-9,10,10-trioxo-thioxanthen-3-yl)acetamide
N-(6-methyl-9,10,10-trioxo-3-thioxanthenyl)acetamide
N-(9,10,10-triketo-6-methyl-thioxanthen-3-yl)acetamide
N-(6-methyl-9,10,10-trioxo-thioxanthen-3-yl)ethanamide