3326-34-9 4-Aminofluorescein AIDS-002275 AIDS002275 Fluorescein amine isomer 1 Fluorescein, 5-amino- Fluoresceinamine Isomer I Fluoresceinamine-I Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 5-amino-3',6'-dihydroxy-