Overview
2-Hexenal is an organic compound classified as an unsaturated aldehyde. It is naturally found in plants and contributes to the characteristic grassy or green odor of freshly cut leaves. Industrially, it is synthesized for use in flavorings, fragrances, and as a chemical intermediate. This compound is highly reactive due to its conjugated double bond and aldehyde functional group, making it valuable in organic synthesis. Its strong aroma also makes it a popular choice in the perfume and food industries.
Physical and Chemical Properties
2-Hexenal is a colorless to pale yellow liquid with a strong, grassy odor. It has a molecular weight of 98.14 g/mol and a density of 0.849 g/cm³. The compound has a melting point of -81 °C and a boiling point of 146-148 °C. It is slightly soluble in water but dissolves well in organic solvents such as ethanol and ether. The presence of the unsaturated aldehyde group makes it highly reactive, particularly in oxidation and polymerization reactions.
Main Applications
2-Hexenal is primarily used in the flavor and fragrance industry, where it imparts a fresh, green note to perfumes, soaps, and food products. It is a key component in the formulation of natural and artificial flavors for fruits and vegetables. In the chemical industry, it serves as an intermediate in the synthesis of more complex organic compounds. Its reactivity makes it useful in the production of pharmaceuticals, agrochemicals, and other specialty chemicals.
Safety and Storage
2-Hexenal is an irritant to the skin, eyes, and respiratory system. Proper handling procedures, including the use of gloves, goggles, and adequate ventilation, are essential to minimize exposure. It should be stored in a cool, dry place away from heat sources and open flames to prevent combustion. Due to its reactivity, it is advisable to store 2-Hexenal in airtight containers under an inert atmosphere to prevent degradation. Spills should be cleaned up immediately using appropriate absorbent materials.
B2B Procurement Guide
When procuring 2-Hexenal, it is crucial to verify the CAS number (6728-26-3) to ensure the correct compound is being purchased. Purity levels should be confirmed, as impurities can affect performance in specific applications. Suppliers should be evaluated for reliability, quality control measures, and compliance with safety regulations. Bulk purchases may offer cost advantages, but storage and handling capabilities should be assessed to maintain product integrity.
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