3-Acetylamino-5-nitrobenzoicacid (CAS# 5464-58-4) is an intermediate in the synthesis of 4-Deiodo-amidotrizoic Acid (D230440), obtained from 3,5-Dinitrobenzenemethanol. It can also be used in biological study for quality environmental risk assessment of photolytic transformation products of iodinated X-ray contrast agent diatrizoic acid.