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paraaminobenzoic acid |
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paraaminobenzoic acid (H2NC6H4COOH) (PABA) [per′ə·amē′nōbenzō′ik] a substance, often associated with the vitamin B complex, found in cereals, eggs, milk, and meat, and present in detectable amounts in blood, urine, spinal fluid, and sweat. It is widely used as a sunscreen that forms a partial chemical conjugation with constituents of the horny layer and resists removal by water and sweat. PABA is a sulfonamide antagonist and may be an effective agent for the treatment of scleroderma, dermatomyositis, and pemphigus. Also called para-aminobenzoic acid. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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H & E H & P H + H 0 H 1 receptor H 1 receptor antagonist H 2 antagonist H 2 NC 6 H 4 COOH H 2 O H 2 receptor H 2 receptor antagonist H agglutinin H and E H antigen H band |
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