ROSE BENGAL DIACETATE

3',6'-bis(acetyloxy)-4,5,6,7-tetrachloro-2',4',5',7'-spiro[isobenzofuran-1(3h),9'-[9h]xanthen]-3-one

Spiro[isobenzofuran-1(3H), 9μ-[9H]xanthen]-3-one, 3μ,6μ-bis(Acetyloxy)-4,5,6, 7-tetrachloro-2μ,4μ,5μ,7μ-spiro[isobenzofuran-1(3H), 9μ-[9H]xanthen]-3-one