Pterin Price Not Available 25mg Pterin Supplier Page Catalog Number R024196 Molecular Formula C6H5N5O CAS# 2236-60-4 Purity ≥95% Inchi InChI=1S/C6H5N5O/c7-6-10-4-3(5(12)11-6)8-1-2-9-4/h1-2H,(H3,7,9,10,11,12) Inchi Key HNXQXTQTPAJEJL-UHFFFAOYSA-N SMILES C1=CN=C2C(=N1)C(=O)N=C(N2)N Size 25mg Supplier Page https://www.musechem.com/product/R024196.html