1-(5-Hydroxy-5-methylhexyl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione 1-(5-Hydroxy-5-methylhexyl)-3-methylxanthine 107767-55-5 1H-Purine-2,6-dione, 3,7-dihydro-1-(5-hydroxy-5-methylhexyl)-3-methyl- A 81-3138 Albifylline Hwa 138 Hwa-138