3-Hydroxy-2-butanone
Overview
3-Hydroxy-2-butanone, commonly known as acetoin, is an organic compound with a sweet, buttery aroma. It is naturally present in many dairy products and is widely used as a flavoring agent in the food and beverage industry. The compound is synthesized through fermentation or chemical processes and is valued for its ability to enhance creamy and buttery flavors in various products. Acetoin is also utilized in the pharmaceutical and fragrance industries due to its pleasant odor and mild taste. Its versatility and widespread application make it a significant compound in multiple industrial sectors.
Physical and Chemical Properties
3-Hydroxy-2-butanone is a colorless to pale yellow liquid with a density of 1.006 g/cm³. It has a melting point of 15-16 °C and a boiling point of 148 °C. The compound is soluble in water, ethanol, and ether, which makes it easy to incorporate into various formulations. Its key chemical properties include a buttery odor and a creamy flavor, which are highly sought after in flavor and fragrance applications. The molecular weight of acetoin is 88.11 g/mol, and its stability under normal conditions makes it suitable for long-term storage when proper precautions are observed.
Main Applications
The primary use of 3-hydroxy-2-butanone is as a flavoring agent in the food and beverage industry. It is commonly added to dairy products, baked goods, and confectionery to impart a creamy, buttery taste. The compound is also used in the production of artificial butter flavors and other dairy substitutes. In addition to its culinary uses, acetoin is employed in the pharmaceutical industry as an intermediate in the synthesis of various drugs. Its pleasant aroma also makes it a popular ingredient in perfumes and personal care products, where it adds a mild, sweet note.
Safety and Storage
3-Hydroxy-2-butanone should be stored in a cool, dry place away from direct sunlight to maintain its stability. Proper ventilation is recommended when handling the compound to avoid inhalation of vapors. Although it is generally considered safe, prolonged exposure to skin or eyes should be avoided. Safety data sheets (SDS) should be consulted before use, and appropriate personal protective equipment (PPE) such as gloves and goggles should be worn during handling. In case of contact, rinse thoroughly with water and seek medical advice if irritation persists.
B2B Procurement Guide
When procuring 3-hydroxy-2-butanone, it is essential to verify the purity and quality of the product. Suppliers should provide certificates of analysis (COA) and material safety data sheets (MSDS) to ensure compliance with industry standards. The reference price ranges between $20-$50 per kg, depending on purity and supplier. Bulk buyers should consider long-term contracts with reputable suppliers to secure consistent quality and pricing. It is also advisable to evaluate the supplier's logistics capabilities to ensure timely delivery and proper handling of the chemical during transportation.