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Niacin - Wikipedia, the free encyclopedia
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日期:2024-08-07
Niacin (also known as vitamin B3 or nicotinic acid) is an organic compound with the formula C 6H 5NO 2 and, depending on the definition used, one of the 20 to 80 essential human nutrients. This colorless, water-soluble solid is a derivative of pyridine, w...看更多