42204-09-1 6-Mercapto-9-(tetrahydro-2-furyl)purine 6H-Purine-6-thione, 1,9-dihydro-9-(tetrahydro-2-furanyl)- (9CI) 9H-Purine-6-thiol, 9-(tetrahydro-2-furyl)- AX 56 NSC 45153 SK 25533