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Other forms of vitamin B 3 include the corresponding amide and nicotinamide (niacinamide), where the carboxyl group has been replaced by a carboxamide group (CONH 2), as well as more complex amides and a variety of esters.
Nicotinamide (also known as niacinamide) is chemically similar to niacin and, like niacin, is a form of vitamin B3. Nicotinamide and niacin are found in many foods, including vegetables, fruits, grains, meats, milk, and eggs.icotinamide is approved by the U.S. Food and Drug Administration (FDA) for the prevention and treatment of pellagra, a vitamin B3 deficiency disease characterized by diarrhea, dermatitis, neurodegeneration, and dementia.