In the intricate world of pharmaceutical manufacturing, the precision and purity of chemical intermediates are paramount. One such crucial compound is (S)-N-ALPHA-T-BUTYLOXYCARBONYL-PYROGLUTAMIC ACID T-BUTYL ESTER, identified by its CAS number 91229-91-3. This compound, often referred to by shorter names like (S)-N-Boc-2-pyrrolidone-5-carboxylic acid t-butyl ester or Boc-Pyr-OtBu, serves as a vital building block in the synthesis of a wide array of pharmaceuticals.

As a protected pyroglutamic acid derivative, this chemical intermediate offers distinct advantages for organic synthesis. Its chiral nature makes it indispensable for stereoselective reactions, a critical requirement for developing enantiomerically pure drug substances. Manufacturers specializing in fine chemicals and pharmaceutical intermediates, particularly those based in China, are key suppliers of this high-value compound. They ensure that the product meets stringent purity standards, often exceeding 97% and readily available at 99% purity.

The chemical formula C14H23NO5 and a molecular weight of approximately 285.34 g/mol define its structure. Its physical form is typically a white solid, with a melting point range of 55.0 to 59.0 °C, which are important parameters for handling and processing. When seeking to buy (S)-N-Boc-2-pyrrolidone-5-carboxylic acid t-butyl ester, purchasing managers and research scientists look for reliable suppliers who can guarantee consistent quality and scalable quantities. Partnering with a reputable manufacturer in China provides access to competitive pricing and a stable supply chain, crucial for maintaining production schedules and controlling costs.

The applications of this intermediate are diverse, extending beyond simple synthesis. It is instrumental in peptide synthesis and plays a role in the development of novel drug candidates across various therapeutic areas. For those involved in pharmaceutical R&D or large-scale API production, understanding the specifications and sourcing channels for intermediates like CAS 91229-91-3 is key. By inquiring about the price of (S)-N-ALPHA-T-BUTYLOXYCARBONYL-PYROGLUTAMIC ACID T-BUTYL ESTER from trusted manufacturers, companies can secure high-quality materials essential for their innovative drug development pipelines.