Ethylene Brassylate, scientifically known as 1,4-dioxacycloheptadecane-5,17-dione (CAS: 105-95-3), is a synthetic macrocyclic ester that has become a cornerstone ingredient in the fragrance and flavor industries. Its unique chemical structure imparts a desirable musk-like odor and remarkable tenacity, making it a valuable compound for perfumers and flavorists worldwide. Understanding its scientific properties is key to appreciating its broad applicability.

Chemically, Ethylene Brassylate is a cyclic diester formed from ethylene glycol and brassylic acid (tridecanedioic acid). Its molecular formula is C15H26O4, with a molecular weight of approximately 270.37 g/mol. Physically, it appears as a pale yellow, transparent oily liquid. Its physical properties, such as a melting point of -8 °C and a boiling point of 138-142 °C at 1 mm Hg, indicate its stable liquid state under typical ambient conditions. The density is around 1.042 g/mL at 25 °C, and its flash point is above 100 °C, signifying good thermal stability for processing.

The synthesis of Ethylene Brassylate typically involves the esterification of brassylic acid with ethylene glycol. Traditionally, brassylic acid itself is derived from the ozonolysis of erucic acid, a fatty acid found in rapeseed oil. This process, while established, highlights the complexity of sourcing raw materials for its production. For B2B buyers seeking Ethylene Brassylate, understanding its production chain can inform their purchasing decisions, particularly regarding supply chain stability and sustainability claims made by manufacturers.

The primary application of Ethylene Brassylate is as a fragrance ingredient. Its musk odor is often described as sweet, powdery, floral, and ambrette-like, with subtle woody and spicy nuances. It is renowned for its exceptional tenacity and fixative capabilities, meaning it helps other volatile fragrance components evaporate more slowly, thus prolonging the overall scent perception. This makes it a vital component in fine perfumery, soaps, detergents, fabric softeners, and other scented household and personal care products. A reliable Ethylene Brassylate manufacturer ensures consistent quality, which is critical for these sensitive applications.

In the flavor industry, Ethylene Brassylate is used in small concentrations to impart musky, sweet, powdery, and perfumey notes, often complementing fruity and vanilla profiles. Its status as a FEMA GRAS (Generally Recognized As Safe) flavoring substance in the US attests to its safety for use in food products, subject to specific regulatory limits. For R&D scientists and flavorists, obtaining high-purity material from a trusted Ethylene Brassylate supplier is crucial for achieving desired taste profiles.

When evaluating sources, buyers should look for detailed specifications and safety data. Information regarding its irritant properties (H315 - Causes skin irritation) and recommended usage levels from bodies like IFRA (International Fragrance Association) are important considerations. As a widely used and well-studied compound, Ethylene Brassylate offers a compelling combination of olfactory appeal, functional performance, and safety when sourced from reputable manufacturers. If you are looking to buy Ethylene Brassylate, consider its scientific merits and partner with a supplier offering quality and expertise.