Synonyms: 4-Imidazolidinone,5-[(1-ethylnaphtho[1,2-d]thiazol-2(1H)-ylidene)ethylidene]-3-heptyl-1-phenyl-2-thioxo-(9CI); Hydantoin,5-[2-(1-ethylnaphtho[1,2-d]thiazolin-2-ylidene)ethylidene]-3-heptyl-1-phenyl-2-thio-(7CI,8CI); Naphtho[1,2-d]thiazole, 4-imidazolidinone deriv.;5-[(1-Ethylnaphtho[1,2-d]thiazolin-2-ylidene)ethylidene]-3-heptyl-1-phenyl-2-thiohydantoin