1H-Purine-2,6-dione, 3,7-dihydro-1-butyl-7-(5,6-dihydroxyhexyl)-3-ethyl- 3,7-Dihydro-1-butyl-7-(5,6-dihydroxyhexyl)-3-ethyl-1H-purine-2,6-dione 86257-20-7