29322010 Phenolphthalein; 1-Hydroxy-4-[1-(4-hydroxy-3-methoxycarbonyl-1-naphthyl)-3-oxo-1H, 3H-benzo(de)isochromen (continued in the official gazette) Phenolphthalein; 1-Hydroxy-4-[1-(4-hydroxy-3-methoxycarbonyl-1-naphthyl)-3-oxo-1H, 3H-benzo(de)isochromen (continued in the official gazette) View