1,9-Dihydro-9-cyclopentyl-6H-purine-6-thione 6165-00-0 6H-Purine-6-thione, 1,9-dihydro-9-cyclopentyl- (9CI) 6H-Purine-6-thione, 9-cyclopentyl-1,9-dihydro- (9CI) 9-Cyclopentyl-6-mercaptopurine 9-Cyclopentyl-9H-purine-6-thiol 9H-Purine-6-thiol, 9-cyclopentyl- AI3-50238 NSC 19487