Overview
Heptenal, also known as 2-heptenal, is an organic compound belonging to the class of unsaturated aldehydes. It is characterized by a strong, grassy odor, making it a valuable component in the fragrance and flavor industry. The compound is typically synthesized through the oxidation of hept-2-ene or other related processes. Heptenal is widely used in the formulation of perfumes, food flavorings, and as an intermediate in the production of other chemicals. Its unsaturated structure allows it to participate in various chemical reactions, making it a versatile building block in organic synthesis.
Physical and Chemical Properties
Heptenal is a colorless to pale yellow liquid with a molecular weight of 112.17 g/mol. It has a density of approximately 0.85 g/cm³ and a boiling point ranging between 175-177 °C. The compound is soluble in most organic solvents but has limited solubility in water. The key chemical property of heptenal is its unsaturated aldehyde group, which makes it reactive towards nucleophiles and susceptible to oxidation. This reactivity is exploited in various industrial applications, including the synthesis of more complex molecules. The strong grassy odor of heptenal is another notable characteristic, often utilized in flavor and fragrance formulations.
Main Applications
Heptenal is primarily used in the fragrance and flavor industry, where its grassy odor is valued in the creation of natural-smelling perfumes and food additives. It is often found in products designed to mimic the scent of freshly cut grass or green leaves. In addition to its role in fragrances and flavors, heptenal serves as an intermediate in organic synthesis. It is used in the production of pharmaceuticals, agrochemicals, and other specialty chemicals. Its reactivity makes it a useful building block for constructing more complex molecular structures.
Safety and Storage
Heptenal is classified as an irritant, capable of causing skin and eye irritation upon contact. Proper handling procedures, including the use of gloves and eye protection, are essential when working with this compound. Adequate ventilation is also recommended to avoid inhalation of vapors. For storage, heptenal should be kept in a cool, dry place away from direct sunlight and oxidizing agents. Containers should be tightly sealed to prevent evaporation and contamination. Long-term storage may require the use of inert atmospheres or stabilizers to prevent degradation.
B2B Procurement Guide
When procuring heptenal for industrial use, it is crucial to verify the CAS number (18829-55-5) and purity specifications. Suppliers should provide detailed technical data sheets and safety information to ensure compliance with regulatory standards. Price ranges for heptenal typically fall between $50-$100 per kg, depending on purity and supplier. Bulk purchases may offer cost savings, but buyers should also consider logistics and storage requirements. It is advisable to source from reputable suppliers with a track record of quality and reliability.
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