4-Aminobenzoic acid

4-Aminobenzoic acid is a pharmaceutical compound which physically appears as a white coloured powder without any odor. Its chemical formula is C7H7NO2 and having a molecular weight of 137.14 grams per mol. It belongs to the family of organic compound with a benzene ring substituted with an amino group and a carboxylic acid. When the chemical is exposed to light it absorbs ultra violet light and emits excess of energy through a photochemical reaction that may cause damage to DNA. 4-Aminobenzoic acid is commonly known as PABA which can acts as an essential nutrient for some bacteria and is sometimes called Vitamin Bx.