4-(5-naphthalen-2-yl-oxazol-2-yl)-phthalic acid anhydride 、
3-羟基-N,N-二乙基苯胺 生成 {9-[2-Carboxy-4-(5-naphthalen-2-yl-oxazol-2-yl)-phenyl]-6-diethylamino-xanthen-3-ylidene}-diethyl-ammonium; chloride 、 {9-[2-Carboxy-5-(5-naphthalen-2-yl-oxazol-2-yl)-phenyl]-6-diethylamino-xanthen-3-ylidene}-diethyl-ammonium; chloride