Hematoporphyrin monomethyl ether

Hematoporphyrin monomethyl ether, second generation of porphyrin-related photosensitizer, is characterized by its single form, high yield of singlet oxygen, high selectivity, and low toxicity, which has been widely used in the diagnosis and research of various tumors, including lung cancer, bladder cancer, and nevus flammeus and brain glioma[1].