53051-75-5 6-(2'-Acetylamino-1',3',4'-thiadiazolyl-5')mercaptopurine ACETAMIDE, N-(5-(9H-PURIN-6-YLTHIO)-1,3,4-THIADIAZOL-2-YL)- N-(5-(9H-Purin-6-ylthio)-1,3,4-thiadiazol-2-yl)acetamide