In 1969, Mutsuyuki Kochi [1, 2] developed 4-Hydroxybenzaldehyde for use as a novel anti-tumor agent without side effect and patent it. Accordingly, this medicine is capable of preventing carcinogenesis when used in sufficient quantity. To treat advanced cancers, an oncologist should start with giving the cancer patient a small dose of 4-Hydroxybenzaldehyde to avoid the possible severe hemorrhage of a tumor caused by excessive necrosis. Therefore, it has useful applications in treating lymphomas and leukemias. Consequently, those who have these diseases can receive a considerably large dose of the medicine.
