2-Amino-1,7-dihydro-7-(2-hydroxyethyl)-6H-purin-6-one 53498-52-5 6H-Purin-6-one, 2-amino-1,7-dihydro-7-(2-hydroxyethyl)- 7-(2-Hydroxyethyl)guanine N(7)-Hydroxyethylguanine