Understanding the precise chemical profile of intermediates is fundamental to successful pharmaceutical manufacturing. Ethyl 5-[4-[4-(5-cyano-1H-indol-3-yl)butyl]-1-piperazinyl]-2-benzofurancarboxylate, identified by CAS number 163521-11-7, is a prime example of such a critical compound. Its molecular formula is C28H30N4O3, and its molecular weight is approximately 470.56 g/mol. This information is vital for researchers and chemists involved in designing synthesis routes and ensuring the correct stoichiometry in reactions. The compound's physical characteristics are also important; it is typically described as a light yellow to off-white powder, a form that facilitates handling and precise weighing in laboratory settings.

The primary utility of CAS 163521-11-7 lies in its role as a precursor for Vilazodone, a significant therapeutic agent for major depressive disorder. Pharmaceutical manufacturers rely on the consistent availability of this intermediate with high purity, often specified as NLT 98%. This level of purity is essential to prevent side reactions and ensure the quality of the final Active Pharmaceutical Ingredient (API). Density is reported as 1.29 g/ml, and it is recommended to store the compound at temperatures between 2-8°C to maintain its stability and efficacy.

Sourcing this essential intermediate from reliable manufacturers, particularly those in China, offers access to competitive pricing and a robust supply chain. When seeking to buy this chemical, it is advisable to check for supplier certifications and product specifications. The ability to purchase in various quantities, from grams for research to kilograms for production, makes it accessible to a wide range of users. For companies involved in pharmaceutical research and development, securing a dependable source for CAS 163521-11-7 is not just a logistical necessity but a cornerstone of efficient and effective drug manufacturing. Manufacturers are keen to provide this pharmaceutical raw material at favorable prices to support the industry.