5,6-dihydro-1H-pyrano[4',3':4,5]thieno[2,3-d]pyrimidine-2,4(3H,8H)-dione; CAS No.: 76872-82-7. Specializing in heterocycles. ChemShuttle offers 5,6-dihydro-1H-pyrano[4',3':4,5]thieno[2,3-d]pyrimidine-2,4(3H,8H)-dione for pharmaceutical applications. Our chemical synthesis company excels in custom synthesis, providing high-purity Building Blocks for efficient molecular design.