1-[[4-(diethylamino)anilino]methylidene]naphthalen-2-one

2-aminobenzo[f]chromen-3-one

1,3,3-三甲基吲哚-β-萘基二氢呋喃

1,1'-ethenediyl-di-[2]naphthol

spiro[benzo[f]chromene-3,9'-thioxanthene]