3-(Adenin-9-yl)-2-hydroxypropanoic acid 2-methylpropyl ester 3-Adenin-9-yl-2-hydroxypropanoic acid isobutyl ester 94458-82-9 9H-Purine-9-propanoic acid, 6-amino-alpha-hydroxy-, 2-methylpropyl ester, (+-)- Ahpa isobutyl ester