niacinamide
ni·a·cin·amide
noun \ˌnī-ə-ˈsin-ə-ˌmīd\Definition of NIACINAMIDE
: a bitter crystalline basic amide C6H6N2O that is a member of the vitamin B complex and is formed from and converted to niacin in the living organism, that occurs naturally usually as a constituent of coenzymes, and that is used similarly to niacin—called also nicotinamide
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