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Other forms of vitamin B 3 include the corresponding amide and nicotinamide (niacinamide), where the carboxyl group has been replaced by a carboxamide group (CONH 2), as well as more complex amides and a variety of esters.
Niacin, also called nicotinic acid, is a B vitamin (vitamin B3) used in vitamin supplements and in combination with prescription drugs. It is most often used to prevent cardiovascular disease.: Niacin is a B complex vitamin. Niacin is used to reduce total cholesterol, bad cholesterol and its components (LDL and Apo B) and triglycerides, and to increase good cholesterol (HDL) in patients with cholesterol disorders.