1 TTD Cis-syn cyclobutane thymine dimer 1.000 2 WUH Thymine dimer 0.907 3 TT [(1r,3r,4s,9r,10s,12r,15as,15br,18br,18cs)-10-hydroxy-15a,15b-dimethyl-13,15,16,18-tetraoxohexadecahydro-8h-9,12-epoxy-1,4-methano-2,5,7-trioxa-12a,14,17,18a-tetraazacyclohexadeca[1,2,3,4-def]biphenylen-3-yl]methyl dihydrogen phosphate 0.905 4 T64 (6-4)photoproduct 0.822 5 O5W [(3~{S},5~{R})-5-(6-azanyl-1-methyl-purin-9-yl)-2-(phosphonooxymethyl)oxolan-3-yl] [(2~{R},3~{S},5~{R})-5-[5-methyl-2,4-bis(oxidanylidene)pyrimidin-1-yl]-3-oxidanyl-oxolan-2-yl]methyl hydrogen phosphate 0.750