Overview
1,8-Cineole, commonly known as eucalyptol, is a monoterpene oxide found in various essential oils, particularly eucalyptus oil. It is characterized by its fresh, camphor-like scent and is widely used in pharmaceuticals, cosmetics, and flavorings. The compound is known for its antiseptic and expectorant properties, making it a popular ingredient in cough syrups, mouthwashes, and topical analgesics. 1,8-Cineole is also used in aromatherapy for its respiratory benefits. Its stability and low toxicity make it suitable for a wide range of applications, from industrial solvents to food additives. The compound is derived through steam distillation of plant materials, primarily eucalyptus leaves, and is often synthesized for commercial use.
Physical and Chemical Properties
1,8-Cineole is a colorless liquid with a density of 0.922 g/cm³ and a boiling point of 176 °C. It has a melting point of 1.5 °C and is slightly soluble in water but readily dissolves in organic solvents like ethanol and ether. The compound exhibits a fresh, camphor-like aroma, which is why it is frequently used in fragrances and flavorings. Chemically, 1,8-Cineole is a stable compound with low reactivity, making it suitable for long-term storage under proper conditions. Its molecular structure includes a cyclic ether, which contributes to its unique properties, including its ability to act as a solvent and its mild antiseptic effects.
Main Applications
1,8-Cineole is extensively used in the pharmaceutical industry as an active ingredient in cough syrups, throat lozenges, and nasal decongestants due to its expectorant and anti-inflammatory properties. It is also a common component in mouthwashes and toothpaste for its antiseptic benefits. In the cosmetics industry, 1,8-Cineole is valued for its refreshing scent and is used in perfumes, soaps, and lotions. Additionally, it serves as a flavoring agent in food and beverages, providing a mild, eucalyptus-like taste. Industrial applications include its use as a solvent and in the production of synthetic camphor.
Safety and Storage
1,8-Cineole is generally considered safe for use in regulated concentrations. However, high concentrations may cause skin irritation or allergic reactions in sensitive individuals. It is important to handle the compound in well-ventilated areas and avoid prolonged exposure to concentrated forms. Storage of 1,8-Cineole requires a cool, dry environment away from heat sources and open flames to prevent combustion. The compound should be kept in tightly sealed containers to minimize evaporation and contamination. Proper labeling and adherence to safety guidelines are essential for industrial and laboratory settings.
B2B Procurement Guide
When procuring 1,8-Cineole, it is crucial to verify the purity and source of the compound. Reputable suppliers should provide certificates of analysis (CoA) to ensure compliance with industry standards. Buyers should also consider the intended application, as different grades may be required for pharmaceutical, cosmetic, or industrial use. Price ranges for 1,8-Cineole vary based on purity and quantity, with bulk purchases typically offering cost savings. It is advisable to establish long-term relationships with suppliers to ensure consistent quality and availability. Additionally, buyers should stay informed about regulatory requirements in their respective industries to avoid compliance issues.
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