1H,4H,5H,6H,7H-pyrazolo[4,3-d]pyrimidine-5,7-dione; CAS No.: 40769-81-1; 1H,4H,5H,6H,7H-pyrazolo[4,3-d]pyrimidine-5,7-dione. ChemShuttle is a leading chemicals distributor that offers a wide range of various organic chemicals. The 1H,4H,5H,6H,7H-pyrazolo[4,3-d]pyrimidine-5,7-dione is one of the screening compounds in their library of compounds. As a custom chemical synthesis company, ChemShuttle can produce this specific chemical building blocks according to clients specifications. The company s collection of chem blocks includes numerous cycle compounds essential for drug discovery. By providing full-time equivalent services, ChemShuttle ensures efficient and effective custom synthesis processes for compounds like the 1H,4H,5H,6H,7H-pyrazolo[4,3-d]pyrimidine-5,7-dione.