o-Aminobenzoic acids, also known as ortho-aminobenzoic acids or o-Aminobenzoates, are a class of chemical compounds that belong to the family of aminobenzoic acids. They are organic compounds composed of a benzene ring with an amine group (-NH2) and a carboxyl group (-COOH) in the ortho position, which refers to the position of substitution on the benzene ring.
These compounds are generally white, crystalline solids that are sparingly soluble in water but dissolve easily in organic solvents. They have various applications in different industries, including pharmaceuticals, cosmetics, and dyes.
In the pharmaceutical field, o-Aminobenzoic acids are primarily used as intermediates in the synthesis of various drugs. They have been employed in the production of local anesthetics, antimalarial drugs, and in the treatment of skin conditions such as vitiligo. Furthermore, due to their ability to absorb ultraviolet (UV) radiation, they have often been used as sunscreen agents to protect the skin from harmful UV rays.
Cosmetic formulations also utilize o-Aminobenzoic acids for their UV-filtering properties. These compounds are capable of absorbing UV light in the range of 250-350 nm, providing protection from both UVA and UVB rays.
o-Aminobenzoic acids are also important intermediates in the synthesis of various dyes. Their benzene ring structure allows for a wide range of color options, and they have been utilized in the manufacture of azo dyes, anthraquinone dyes, and acid dyes.
In summary, o-Aminobenzoic acids are a class of organic compounds with a benzene
