Desmethylene Tadalafil Price Not Available 10mg Desmethylene Tadalafil Supplier Page Catalog Number R056444 Molecular Formula C21H19N3O4 CAS# 171489-03-5 Purity ≥98% Inchi InChI=1S/C21H19N3O4/c1-23-10-18(27)24-15(21(23)28)9-13-12-4-2-3-5-14(12)22-19(13)20(24)11-6-7-16(25)17(26)8-11/h2-8,15,20,22,25-26H,9-10H2,1H3/t15-,20-/m1/s1 Inchi Key HZSPPSAESSMSNY-FOIQADDNSA-N SMILES CN1CC(=O)N2C(C1=O)CC3=C(C2C4=CC(=C(C=C4)O)O)NC5=CC=CC=C35 Size 10mg Supplier Page https://www.musechem.com/product/R056444.html