2-Nitrobenzoic acid

2-Nitrobenzoic acid (CAS 552-16-9) is an aromatic organic acid also known as o-Nitrobenzoic acid or o-Carboxynitrobenzene, with no assigned E-code. It is a nitro-substituted benzoic acid derivative carrying both a carboxyl and a nitro group in ortho position, giving it distinct reactivity compared to its isomers.

In pharmaceutical formulations, it functions as a pH buffer and antimicrobial agent by disrupting microbial cell membranes at controlled acidity levels. Personal care manufacturers incorporate it as a preservative and skin conditioner, where its acidic character supports formulation stability. It also serves as a colorant intermediate in dye synthesis.

2-Nitrobenzoic acid is supplied as a fine off-white powder meeting technical and pharmaceutical-grade specifications under REACH compliance. Buyers should confirm applicable Ph.Eur. or FCC alignment with the supplier prior to order. Standard packaging formats include 25 kg bags and drums, with HS code 29163900 applicable for EU import and export documentation.