Barbituric Acid-13C,15N2 Price Not Available 10mg Barbituric Acid-13C,15N2 Supplier Page Catalog Number R048188 Molecular Formula C4H4N2O3 CAS# 1329809-18-8 Purity ≥95% Inchi InChI=1S/C4H4N2O3/c7-2-1-3(8)6-4(9)5-2/h1H2,(H2,5,6,7,8,9)/i4+1,5+1,6+1 Inchi Key HNYOPLTXPVRDBG-VMGGCIAMSA-N SMILES C1C(=O)NC(=O)NC1=O Size 10mg Supplier Page https://www.musechem.com/product/R048188.html