CAS: 111-80-8
Methyl 2-octynoate, also known as methyl octyne carbonate (though chemically, it's an octynoate, an ester of an alkyne carboxylic acid, not a carbonate), is an organic compound with the chemical formula C9H14O2. It is a colorless to pale yellow liquid with a very strong, distinctive odor described as intensely violet-leaf, floral, green, fruity, and slightly woody. It is an ester of 2-octynoic acid and methanol. This compound is highly valued for its unique aroma profile, which is quite powerful and diffusive even at low concentrations.
Methyl 2-octynoate is primarily used as a fragrance ingredient in the perfumery and flavor industries. Its characteristic violet-leaf and fruity-green notes make it a popular choice for creating floral, green, and modern aldehyde-type fragrances. It is also employed as a trace component in some food flavorings to impart specific fruity and green nuances.
Its applications span across various consumer products. It is a common constituent in fine fragrances, eau de toilettes, and perfumes. Beyond personal care, it's found in cosmetic products such as lotions, creams, and soaps. It is also incorporated into detergents, household cleaners, and air fresheners to provide a fresh and floral scent. Due to its potent aroma, it is typically used in very low concentrations.
Methyl 2-octynoate can be an irritant to the skin, eyes, and respiratory system. It has a known potential for skin sensitization in certain individuals, especially at higher concentrations, and regulatory bodies like IFRA (International Fragrance Association) often provide guidelines for its maximum usage levels in different product categories to minimize this risk. It is combustible and should be stored away from ignition sources. Ingestion or inhalation of large quantities should be avoided. Standard industrial hygiene practices, including good ventilation and use of personal protective equipment (gloves, eye protection), are recommended when handling this chemical.
Methyl 2-octynoateMethyl heptyne carboxylate2-Octynoic acid methyl esterMethyl hept-1-yne-1-carboxylateMethyl 2-octynoate FCC
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