The title compound. C20H18N2O4. is a chalcone derivative of pyrazole. The pyrazole ring is inclined at a dihedral angle of 19. https://www.royaltyfurnitureandappliancers.shop/product-category/futon-frames/
Futon Frames
Internet 1 hour 4 minutes ago xdhqvgsslrfam6Web Directory Categories
Web Directory Search
New Site Listings