58337-38-5 9H-Purine-9-ethanol, 6-amino-.beta.-hexyl-.alpha.-methyl-, monohydrochloride 9H-Purine-9-ethanol, 6-amino-.beta.-hexyl-.alpha.-methyl-, monohydrochloride, (R*,S*)- Adenosine deaminase inhibitor EHNA HCl NSC263164