Overview
alpha-Methylcinnamaldehyde is an aromatic aldehyde derived from cinnamaldehyde, characterized by its warm, spicy-cinnamon scent with floral undertones. It is synthetically produced for commercial use, primarily serving as a fragrance intermediate and flavor enhancer. The compound's versatility in blending with other aroma chemicals makes it a staple in creating complex perfumes and food flavorings. Its stability in alcoholic solutions and oils further enhances its utility in formulations.
Physical and Chemical Properties
As a liquid with a pale yellow hue, alpha-methylcinnamaldehyde exhibits moderate volatility and a density slightly higher than water. Its insolubility in water but solubility in organic solvents like ethanol and propylene glycol allows for flexible formulation in cosmetic and food applications. The aldehyde group in its structure makes it prone to oxidation, necessitating antioxidants in storage. Its boiling point around 250°C indicates suitability for high-temperature processes in fragrance compounding.
Main Applications
In perfumery, alpha-methylcinnamaldehyde is valued for its ability to impart warm, spicy notes in oriental and floral fragrances. It acts as a modifier in lilac, jasmine, and rose accords, often comprising 1-5% of fragrance oil compositions. The food industry employs it as a flavoring agent in baked goods, confectionery, and beverages, typically at concentrations below 0.01%. Its use complies with FEMA and EU flavoring regulations when purity standards are met.
Safety and Storage
Classified as an irritant, alpha-methylcinnamaldehyde requires handling with nitrile gloves and goggles. Prolonged inhalation exposure should be avoided; workplaces must maintain airborne concentrations below 5 mg/m³ as per OSHA guidelines. Storage in amber glass or FDA-approved HDPE containers under nitrogen blanket extends shelf life to 2 years. Bulk purchases should include stabilizers like BHT (0.1%) to prevent polymerization and discoloration.
B2B Procurement Guide
When sourcing alpha-methylcinnamaldehyde, prioritize suppliers providing GC-MS purity certificates (≥95% pure) and IFRA compliance statements. For food-grade applications, request EU/ FDA regulatory documentation. Consider ordering small test quantities to evaluate odor profile consistency. Spot purchases typically range $50-$80/kg, while contract pricing for metric-ton quantities may drop to $30-$50/kg. Verify ISO 9001 or GMP certifications for quality assurance.
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