红色或红褐色的颗粒或。易溶于水，可溶于甘油及乙醇，不溶于油脂。耐光性差，耐热性；耐碱性；耐氧化还原及耐细菌性均好，但对酸不稳定。碱溶性: 1 mg/mL 2 M NaOH It can be used as a dye in fluorescence lifetime imaging. It is also a xanthene dye. It belongs to the family of fluorescein dyes. It plays a major role in inhibiting dopamine uptake and high affinity 3H-ouabain binding and ion transport in synaptosomes from rat caudate nucleus. It can be used as a dye in fluorescence lifetime imaging. It is also a xanthene dye. It belongs to the family of fluorescein dyes. It plays a major role in inhibiting dopamine uptake and high affinity 3H-ouabain binding and ion transport in synaptosomes from rat caudate nucleus.