P-Xylenolphthalein50984-88-8100 % similar Thymolphthalein125-20-274 % similar O-Cresolphthalein596-27-071 % similar Naphtholphthalein596-01-060 % similar Dichlorofluorescein76-54-055 % similar Sodium thymolphthalein monophosphate28749-63-554 % similar Xylenol blue125-31-553 % similar Fluorescein2321-07-553 % similar Solvent red 72596-03-253 % similar Phenolphthalein77-09-852 % similar Tetrabromophenolphthalein76-62-050 % similar Red 2115086-94-948 % similar 3′,6′-Dichlorospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one630-88-647 % similar O-Cresolphthalein complexone2411-89-447 % similar Calcein1461-15-046 % similar 3′,6′-Diacetylfluorescein596-09-845 % similar Solvent red 49509-34-245 % similar Sodium fluorescein518-47-844 % similar Food Red No. 3 aluminum lake12227-78-043 % similar Phenolphthalein diphosphate2090-82-643 % similar