PROBLEM TO BE SOLVED: To provide a photodynamic therapeutic agent, harmful organic substance decomposing or removing agent and a photosensitizing substance as an organosynthetic catalyst, having high stability and light-absorption in the visible range and generating singlet oxygen in high quantum yield.SOLUTION: The brominated porphycene derivative generating singlet oxygen in high quantum yield by light irradiation is expressed by formula (1) (in the formula, X1 and X2 are each a hydrogen atom or a bromine atom provided that X1 and X2 are not hydrogen atoms at the same time M is two hydrogen atoms or a palladium atom and nPr is an n-propyl group).COPYRIGHT: (C)2009,JPO&INPIT【課題】可視部の光吸収が大きく安定で高い量子収率で一重項酸素を生成し、光線力学的治療剤、有害有機物質分解・除去剤、及び有機合成触媒としての光増感物質の提供。【解決手段】ブロモ化ポルフィセン誘導体。【選択図】図1
