UV Absorbers, also known as UV filters, are used extensively in cosmetic products and some drugs. As a result of ill effects of UV on human skin, their uses have increased enormously in recent years. Most of the negative effects of sunlight including sunburn, light-induced cell injury and skin cancer are induced by UVB radiation (280-320 nm). UVA radiation (320-400 nm) mainly contributes to premature skin aging and direct pigmentation. L C United offers a range of UVA- and UVB filters as follows: Trade Name Product Name Absorber Type CAS No. Solubility UVSOB A Avobenzone UVA 70356-09-1 UVSOB B Octyl p-Methoxycinnamate UVB 5466-77-3 UVSOB 300 Octyl Salicylate UVB 118-60-5 UVSOB 320 Octocrylene UVB 6197-30-4 UVSOB 340 Benzophenone-4 UVA/UVB 4065-45-6 UVSOB 350 Benzophenone-3 UVA/UVB 131-57-7 UVSOB 370 Homosalate UVB 118-56-9 UVSOB MBC 4-Methylbenzylidene Camphor UVA/UVB 36861-47-9 UVSOB HS Phenylbenzimidazole Sulfonic Acid UVA/UVB 27503-81-7 * Solubility: Oil Soluble; Water Soluble You need Acrobat Reader to view product specifications.