Product Description
LEAPChem supplies high quality fine chemicals, intermediates and APIs.
AI Product Description
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p-Nitrobenzoic acid, chemically designated as 4-nitrobenzoic acid, is a pivotal organic compound widely utilized in industrial synthesis and pharmaceutical research. Its molecular formula is C7H5NO4, reflecting a structure composed of a benzene ring substituted with a carboxylic acid group at the first position and a nitro group at the para position. The substance is characterized by its distinct CAS number, 62-23-7, which serves as its unique registry identifier in chemical databases worldwide. Physically, it appears as pale yellow to off-white crystalline powder or needles, exhibiting moderate solubility in hot water and alcohol while remaining largely insoluble in cold water.
The primary utility of p-nitrobenzoic acid lies in its role as a versatile intermediate for the manufacture of various dyes, pigments, and agrochemicals. It is frequently employed in the synthesis of azo dyes due to the reactivity of its nitro group, which can be easily reduced to an amino group to form diazonium salts. Furthermore, this compound serves as a crucial building block in the production of specific pharmaceutical agents, including certain antibiotics and anti-inflammatory drugs, where it contributes to the structural integrity of the final active ingredient. In analytical chemistry, it is often used as a standard reference material or a derivatizing agent to enhance the detection sensitivity of other compounds during chromatographic analysis.
Safety protocols are essential when handling this substance, as it acts as a skin and eye irritant. Proper personal protective equipment, including gloves and goggles, must be worn to prevent direct contact. Storage should occur in a cool, dry, well-ventilated area away from incompatible materials such as strong reducing agents or oxidizers. Overall, p-nitrobenzoic acid remains an indispensable commodity in the fine chemical industry, bridging the gap between basic petrochemical feedstocks and high-value specialized products. Its consistent availability and predictable reaction profiles make it a staple for researchers and manufacturers seeking reliable precursors for complex molecular architectures.