Vitamin B3

Niacin, also known as nicotinic acid, is an organic compound and a form of vitamin B3, an essential human nutrient. It has the formula C ₆H ₅NO ₂ and belongs to the group of the pyridinecarboxylic acid. Wikipedia
IUPAC ID: pyridine-3-carboxylic acid
Formula: C6H5NO2
Molar mass: 123.11 g/mol
Melting point: 237 °C
Density: 1.47 g/cm³
Soluble in: Water

Clinical symptoms of a vitamin B3 niacin deficiency are usually categorized as the “3 D’s”: dermatitis (skin rashes), diarrhea, or dementia. … When a vitamin B3 niacin deficiency is seen, the following are signs and symptoms: Pellagra- characterized by skin inflammation, hallucinations, digestive distress.

VITAMIN B3 (NIACIN)

What is it? A water-soluble B vitamin involved in energy production from dietary intake.
What does it do for me? Supports the transformation of food into useful energy. Niacin also supports a healthy nervous system, brain, digestive system, and skin.
Where can I find it? Many foods contain niacin, but chicken, leafy green vegetables, corn, wheat, and fish are good sources.
Niacin, like many of its B-vitamin brethren, is essential for energy production. So, it helps turn the food in your gut into the energy your cells and body need to function.
Vitamin B3 completes these important functions because it’s part of two coenzymes—nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP). Don’t get hung up on the long, complicated names. Focus on their functions.
NAD and NADP are very similar in function to the coenzymes in which riboflavin is involved. They spark the transfer of electrons in redox reactions, especially during the molecular breakdown of macronutrients. Do you see another common theme here? Electron transfers provide a lot of the energy your body uses. And B vitamins—including niacin—play important roles in these processes.
If you don’t get enough niacin and niacinamide (a niacin derivative) you’re in danger of developing pellagra. But niacin is widely distributed in plant and animal foods, and vitamin B3 intake is essentially non-toxic below 50 mg a day.