Monohydroxybenzoic acid

Monohydroxybenzoic acid is a type of hydroxybenzoic acid, a phenolic acid that is a monohydroxy derivative of benzoic acid. It is an organic compound that is widely used in the pharmaceutical industry.

Chemical Structure

Monohydroxybenzoic acid has a chemical formula of C7H6O3. It consists of a benzene ring, which is a six-carbon ring with alternating single and double bonds, with a carboxylic acid (COOH) group and a hydroxyl (OH) group attached to it. The position of the hydroxyl group on the benzene ring can vary, leading to the formation of three different isomers: p-hydroxybenzoic acid, m-hydroxybenzoic acid, and o-hydroxybenzoic acid.

Properties

Monohydroxybenzoic acid is a white crystalline solid at room temperature. It is slightly soluble in water, but more soluble in organic solvents such as ethanol and acetone. It has a melting point of 213-218 degrees Celsius.

Uses

Monohydroxybenzoic acid and its derivatives are widely used in the pharmaceutical industry. They are used as preservatives in many pharmaceutical products due to their antimicrobial properties. They are also used in the synthesis of other pharmaceutical compounds.

Safety

Monohydroxybenzoic acid is generally considered safe for use in pharmaceuticals. However, some people may have an allergic reaction to it, resulting in skin irritation or other symptoms. It is recommended to use it with caution in people with known allergies to benzoic acid or its derivatives.

See Also

• Benzoic acid
• Hydroxybenzoic acid
• Phenolic acid
• Pharmaceutical industry