Here are some Iâve found on the subject of art and art history. â 1  Art is not what you see, but what you make others seeâ -Edgar Degas. â 2 Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seenâ â Leonardo Da Vinci.
Other forms of vitamin B 3 include the corresponding amide and nicotinamide (niacinamide), where the carboxyl group has been replaced by a carboxamide group (CONH 2), as well as more complex amides and a variety of esters.
1 Niacin/nicotinic acid & niacinamide/nicotinamide. 2  Niacin/nicotinic acid & niacinamide/nicotinamide. 3  niacinamide. 4  niacinamide. 5  niacinamide. 6  niacinamidosis. 7  niacinamidosis. 8  niacinamidosis. 9  Niacine. 10  Niacine.iÂ·aÂ·cin. n. A white crystalline acid, C 6 H 5 NO 2, of the vitamin B complex that is found in meat, fish, legumes, and whole-grain foods and is used to treat and prevent pellagra. Also called nicotinic acid.