Overview
4-Cyanocinnamic acid is an organic compound belonging to the cinnamic acid derivatives family. It features a cyano group (-CN) attached to the para position of the phenyl ring, making it a valuable intermediate in pharmaceuticals and specialty chemicals. Its aromatic structure and reactivity enable diverse synthetic applications. This compound is commonly synthesized via Knoevenagel condensation or other organic reactions. Industrial demand stems from its role in producing active pharmaceutical ingredients (APIs) and advanced materials. Researchers also utilize it in photopolymerization studies due to its light-sensitive properties.
Physical and Chemical Properties
As a crystalline solid, 4-cyanocinnamic acid exhibits moderate solubility in polar organic solvents but limited solubility in water. Its melting point ranges between 220-222°C, reflecting stable aromaticity. The cyano group enhances electrophilic reactivity, facilitating nucleophilic addition reactions. The compound’s UV absorption spectrum makes it suitable for spectroscopic analysis. It demonstrates stability under standard conditions but may degrade under prolonged exposure to strong acids, bases, or UV light. Handling requires caution due to potential irritation to skin and eyes.
Main Applications
In pharmaceuticals, 4-cyanocinnamic acid serves as a precursor for antitumor and antimicrobial agents. Its conjugated double bond system is pivotal in designing enzyme inhibitors and receptor modulators. Beyond medicine, it aids in synthesizing liquid crystals, dyes, and photoactive polymers. Research laboratories employ it in MALDI-TOF mass spectrometry as a matrix additive for small-molecule analysis. Its versatility also extends to agrochemicals and advanced material science.
Safety and Storage
Proper storage involves sealing the compound in airtight containers under inert gas (e.g., nitrogen) to prevent oxidation. Labeling should include hazard symbols for irritant and harmful substances. Personal protective equipment (PPE) like gloves, goggles, and lab coats is mandatory during handling. Spills should be neutralized with absorbent materials and disposed of as hazardous waste. Always consult Safety Data Sheets (SDS) for emergency protocols.
B2B Procurement Guide
B2B buyers should prioritize suppliers with ISO certification and batch-specific purity reports. Key evaluation criteria include HPLC purity (>95%), residual solvent levels, and particle size consistency. Bulk purchases (1kg+) may reduce costs by approximately 20-30%. Consider regional logistics, as some countries impose strict regulations on cyanide-containing compounds. Negotiate lead times and sample availability before large orders.
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