The title compound. C20H18N2O4. is a chalcone derivative of pyrazole. The pyrazole ring is inclined at a dihedral angle of 19. https://herbsdailyes.shop/product-category/medical-and-ambulatory-supplies-apparel/
Medical and Ambulatory supplies / Apparel
Internet 5 minutes ago eaxhpn3pqddbWeb Directory Categories
Web Directory Search
New Site Listings