An agent for diagnosing or photokinetically treating malignant tumors, comprising as an active ingredient a compound in which at least one carbon atom of 5-aminolevulinic acid is a carbon isotope and/or a nitrogen atom in its amino group is a nitrogen isotope, or an ester, amide, salt, hydrate or solvate of the compound.
一种用于诊断或光动力学治疗恶性肿瘤的制剂,其活性成分包括
5-氨基乙酰丙酸中至少一个碳原子为碳同位素和/或其
氨基中一个氮原子为氮同位素的化合物,或该化合物的酯、酰胺、盐、
水合物或溶液。