3',6'-Bis(ethylamino)-2',7'-dimethylfluoran 3',6'-Bis(ethylamino)-2',7'-dimethylspiro(isobenzofuran-1(3H),9'-(9H)xanthene)-3-one 41382-37-0 41988-76-5 EINECS 255-345-1 Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-bis(ethylamino)-2',7'-dimethyl-