Guanine-4,5-13C2,7-15N Price Not Available 1mg Guanine-4,5-13C2,7-15N Supplier Page Catalog Number R049670 Molecular Formula C5H5N5O CAS# 1207525-05-0 Purity ≥90% Inchi InChI=1S/C5H5N5O/c6-5-9-3-2(4(11)10-5)7-1-8-3/h1H,(H4,6,7,8,9,10,11)/i2+1,3+1,7+1 Inchi Key UYTPUPDQBNUYGX-QZTPXDJLSA-N SMILES C1=NC2=C(N1)C(=O)N=C(N2)N Size 1mg Supplier Page https://www.musechem.com/product/R049670.html