the action spectra for producing minimal phototoxic erythema with topical 0.i % trimethyl psoralen ( tmp ) and 8-methoxypsoralen ( 8-mop ) were determined with a double monochromator in the range of 295-380 nm . both psoralens induced photosensitivity in the range of 313-365 nm ;
C0025684
8-methoxypsoralen
C0033858
psoralens