Overview
4-Nitroisophthalic acid (4-NIC) is an organic compound primarily used as an intermediate in the synthesis of pharmaceuticals and other specialty chemicals. It belongs to the family of nitro-substituted aromatic carboxylic acids, which are known for their reactivity and utility in various chemical reactions. The compound is typically synthesized through the nitration of isophthalic acid, followed by purification processes to achieve the desired purity. Its unique chemical structure makes it valuable for creating more complex molecules in drug development and industrial applications.
Physical and Chemical Properties
4-NIC is characterized by its off-white to light yellow crystalline appearance. It has a molecular weight of 211.13 g/mol and a melting point ranging between 250-260°C. The compound is soluble in common organic solvents such as ethanol and acetone but exhibits limited solubility in water. Chemically, 4-NIC is stable under normal conditions but can decompose when exposed to high temperatures or strong oxidizing agents. Its nitro and carboxyl functional groups make it reactive in various chemical transformations, including reductions and esterifications.
Main Applications
The primary use of 4-NIC is in the pharmaceutical industry, where it serves as a building block for synthesizing active pharmaceutical ingredients (APIs). Its nitro group can be reduced to an amine, enabling the creation of diverse drug molecules. In addition to pharmaceuticals, 4-NIC is employed in organic synthesis for producing dyes, pigments, and specialty polymers. Its versatility as an intermediate makes it valuable in research and industrial settings where fine chemicals are required.
Safety and Storage
Handling 4-NIC requires caution due to its potential health hazards. Direct contact with skin or eyes can cause irritation, and inhalation of dust should be avoided. Proper personal protective equipment (PPE), including gloves and safety goggles, is recommended. Storage conditions should prioritize a cool, dry environment away from moisture and direct sunlight. Containers must be tightly sealed to prevent contamination and degradation. In case of spills, absorb the material with an inert substance and dispose of it according to local regulations.
B2B Procurement Guide
When procuring 4-NIC, businesses should prioritize suppliers who provide comprehensive documentation, including material safety data sheets (MSDS) and certificates of analysis (CoA). These documents ensure the product meets purity and safety standards. Price ranges for 4-NIC can vary significantly based on purity levels and order quantities. Bulk purchases may offer cost advantages, but buyers should verify the supplier's reliability and quality control processes. Custom packaging options, such as moisture-proof containers, may be necessary for specific applications.
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