Overview
5-Nitroquinoline is a nitro-substituted derivative of quinoline, a heterocyclic aromatic compound. It serves as a versatile intermediate in organic synthesis, particularly in pharmaceuticals and agrochemicals. Its nitro group enhances reactivity, making it valuable for further chemical transformations. Quinoline derivatives like 5-nitroquinoline are widely studied due to their biological activity, including antimicrobial and anticancer properties. The compound is typically synthesized via nitration of quinoline under controlled conditions to ensure regioselectivity.
Physical and Chemical Properties
5-Nitroquinoline appears as a light yellow crystalline powder with a melting point of 70-72°C. It is soluble in common organic solvents such as ethanol, methanol, and ether but has limited solubility in water. The nitro group at the 5-position influences its electronic properties, making it more polar than unsubstituted quinoline. The compound is stable under normal storage conditions but may decompose when exposed to strong acids, bases, or reducing agents. Its UV-visible absorption spectrum shows characteristic peaks due to the conjugated quinoline ring and nitro group.
Main Applications
5-Nitroquinoline is primarily used as an intermediate in the synthesis of pharmaceuticals, including antimalarial and antibacterial agents. Its nitro group can be reduced to an amine, enabling further functionalization for drug development. In agrochemicals, it serves as a precursor for herbicides and insecticides. The compound is also employed in dye manufacturing, where its aromatic structure contributes to colorfastness. Research applications include studies on nitroaromatic compounds' toxicity and biodegradation.
Safety and Storage
5-Nitroquinoline is classified as harmful if ingested or inhaled and may cause skin or eye irritation. Proper personal protective equipment (PPE), including gloves and goggles, should be used when handling. Avoid dust formation and ensure adequate ventilation. Store in tightly sealed containers away from light, heat, and incompatible substances like strong oxidizers. Shelf life is typically 2-3 years when stored under recommended conditions. Dispose of waste in accordance with local regulations for nitroaromatic compounds.
B2B Procurement Guide
When sourcing 5-nitroquinoline, prioritize suppliers who provide certificates of analysis (CoA) confirming purity (≥98%) and identity (CAS 607-34-1). Bulk purchases (25 kg drums) often offer cost advantages, but verify storage compatibility. Request material safety data sheets (MSDS) and inquire about packaging options to minimize degradation during transit. Reliable suppliers should offer technical support for custom synthesis or large-scale orders. Compare prices from multiple vendors, as costs fluctuate based on nitroquinoline market demand.
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