methoxsalen

noun
me·​thox·​sa·​len | \me-ˈthäk-sə-lən \

Medical Definition of methoxsalen 

: a drug C12H8O4 used to increase the production of melanin in the skin upon exposure to ultraviolet light and in the treatment of vitiligo

called also 8-methoxypsoralen, xanthotoxin

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