Cell Culture Phototoxicity Test
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Human A431 cells and mouse 3T3 cells are exposed in culture to UV light both in the presence and absence of test compound.
Phototoxicity is expressed as a decrease in cell viability as determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium
bromide (MTT) assay.









