2-(p-Toluidino)-3-methyl-6-(N-ethyl-p-toluidino)fluoran

2'-(p-Toluidino)-3'-methyl-6'-[(p-tolyl)ethylamino]spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one

6'-[ethyl(p-tolyl)amino]-3'-methyl-2'-[(p-tolyl)amino]spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one