2-amino-7-((8R,9S,13S,14S)-3,4-dihydroxy-13-methyl-17-oxo-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-1-yl)-1H-purin-6(7H)-one;2-Amino-7-(3,4-dihydroxy-17-oxoestra-1,3,5(10)-trien-1-yl)-1,7-dihydro-6H-purin-6-one; 4-OH-E1-1-N7Gua;4-Hydroxy Estrone 1-N7-Guanine
