1H-Purine-2,6-dione, 3,7-dihydro-3,7-dimethyl-8-(propylthio)- 74039-58-0 8-(Propylthio)theobromine NSC81491 Theobromine, 8-(propylthio)- WLN: T56 BN DN FNVMVJ B1 CS3 F1