3d image of pheophorbide a skeletal formula

pheophorbide phaeophorbide chlorophyll breakdown photosensitizer phytol hydrolyzed pheophytin photodynamic therapy pdt photosensitizers cancer treatment anti-cancer anticancer anti-tumor pheophorbide pa-pdt synthetic herbal phytochemical phytotherapy plant herb natural metabolite metabolism biosynthesis pathway path catabolism biosynthetic intermediate biogenesis synthesis derivative bioprecursor metabolic endogenous molecule molecular formula skeletal structural structure biochemistry biomolecule bioactive biochemical 3d