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nicotinic acid

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.12 sec.
nicotinic acid: see coenzyme biotin, is a member of the B complex; it was first isolated in 1935 from dried egg yolk, and its structure was established in 1942. Biotin is usually found attached to a lysine residue in certain enzymes, where it participates in reactions involving the transfer of carboxyl
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; vitamin vitamin, group of organic substances that are required in the diet of humans and animals for normal growth, maintenance of life, and normal reproduction. Vitamins act as catalysts; very often either the vitamins themselves are coenzymes , or they form integral parts
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In this section we highlight the contribution of direct-space structure solution methods to a number of systematic structural studies, including a long-standing investigation of a family of sulfonylamino compounds entirely from powder diffraction data, the study of atypical crystal packing in a group of nicotinic acid derivatives and report the first example of powder diffraction being used in the structure solution of an organic cocrystal.
05 Saline Monocrotaline 5 50 Saline Nicotinic acid 200 2,000 Saline Oligomycin 0.
niacin (vitamin B3) or nicotinic acid, an important member of the vitamin B complex, aids the metabolic process for growth in every cell.
 
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