N,N'-bis-aromaticformamidines useful as sunscreening agents
Near-azeotropic compositions constituted by hydrogenated fluoroc
New photochromic materials and method for their preparation
Non-crystalline substance having an optical memory effect
Non-flammable aerosol propellant microemulsion system
Non-ionic surface active compounds
Nonaqueous suspension concentrates of highly water-soluble solid
Novel liquid membrane formulations and use thereof
Novel liquid membrane formulations and uses thereof
Novel translucent water in oil emulsions