For B2B procurement professionals and research scientists in the chemical and pharmaceutical sectors, a thorough understanding of product specifications is non-negotiable. Cholesteryl Acetate (CAS 604-35-3) is no exception. When you are looking to buy this crucial compound, knowing what to ask for from a manufacturer or supplier can streamline your procurement process and ensure you receive a product that meets your exact needs.

The fundamental specification for Cholesteryl Acetate is its CAS number: 604-35-3. This unique identifier ensures you are sourcing the correct chemical entity. Beyond the CAS number, purity is a critical metric. Most reputable suppliers will offer Cholesteryl Acetate with a purity of 95%, 98%, or even higher, often determined by High-Performance Liquid Chromatography (HPLC). For pharmaceutical intermediates and sensitive research applications, high purity is paramount to avoid interfering side reactions or inaccurate results. Always confirm the purity percentage and the analytical method used.

The physical characteristics of Cholesteryl Acetate are also important. It is typically described as a white fine crystalline powder or needles. Its melting point usually falls within the range of 111-116 °C, though literature values may vary slightly (e.g., 112-114 °C). These physical properties are crucial for identification and quality control. Furthermore, optical activity, such as [α]24/D -44° (c=2, CHCl3), provides further assurance of the correct stereochemistry, especially when dealing with chiral molecules like cholesterol derivatives.

When engaging with a manufacturer or supplier for Cholesteryl Acetate, consider their packaging and shipping capabilities. Products are commonly available in sizes ranging from milligrams for laboratory use to kilograms for industrial applications. Reliable suppliers will offer secure packaging to maintain product integrity during transit. If you are sourcing from China, understanding their export procedures and international shipping options (like DHL, FedEx, UPS) is beneficial for timely delivery.

For businesses aiming to buy Cholesteryl Acetate, comparing quotes from different manufacturers is a standard practice. However, price should not be the sole factor. A supplier's commitment to quality, consistent batch-to-batch reproducibility, and responsive customer support—especially for technical inquiries or custom synthesis needs—are equally important. By focusing on these key specifications and supplier attributes, you can confidently secure a reliable source for your Cholesteryl Acetate requirements.