6-Nitrofluorescein Diacetate

3,6-Diacetoxy-6'-nitrospiro[9H-xanthene-9,1'(3'H)-isobenzofuran]-3'-one

3',6'-Bis(acetyloxy)-6-nitrospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one

Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-bis(acetyloxy)-6-nitro-