Caffeic acid Price Not Available 1mg Caffeic acid Supplier Page Catalog Number R013839 Molecular Formula C₉H₈O₄ CAS# 331-39-5 Purity ≥98% Inchi InChI=1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2+ Inchi Key QAIPRVGONGVQAS-DUXPYHPUSA-N SMILES C1=CC(=C(C=C1C=CC(=O)O)O)O Size 1mg Supplier Page https://www.musechem.com/product/R013839.html