Methyl (R)-3-aminobutanoate Hydrochloride, identified by CAS number 139243-54-2, is a significant compound within the realm of fine chemicals and pharmaceutical intermediates. Its precise chemical structure and chirality make it a valuable asset for synthetic chemists engaged in the creation of complex organic molecules, particularly within the pharmaceutical industry. Understanding its characteristics and applications is key for efficient utilization.

As a derivative of butanoic acid, this compound features an amino group and a methyl ester. The designation '(R)-' indicates its specific stereochemical configuration, which is crucial for biological activity in many pharmaceutical applications. The hydrochloride salt form enhances its stability and handling properties. Information available from suppliers like NINGBO INNO PHARMCHEM CO.,LTD. consistently points to its appearance as a white to off-white solid, suggesting a high degree of purity, often stated as 99% or greater.

The primary role of Methyl (R)-3-aminobutanoate Hydrochloride is as a pharmaceutical intermediate. It serves as a critical building block in the multi-step synthesis of various drug candidates and active pharmaceutical ingredients (APIs). Its chiral nature allows for the introduction of specific stereocenters into target molecules, a process vital for ensuring the efficacy and safety of modern medicines. The ability to reliably source this intermediate from manufacturers in China is a significant advantage for global pharmaceutical R&D.

In broader organic synthesis, this compound is employed for its reactive functional groups. The presence of both an amine and an ester allows for a wide array of chemical transformations, including amide formation, esterification, and various coupling reactions. This versatility makes it an attractive starting material or intermediate for chemists developing new synthetic methodologies or designing novel organic compounds for diverse applications.

Safety considerations, as indicated by GHS hazard statements such as H302 (Harmful if swallowed), necessitate proper handling procedures. When purchasing Methyl (R)-3-aminobutanoate Hydrochloride, it is advisable to consult the Safety Data Sheet (SDS) and follow recommended precautions for storage and use. Ensuring that your supply chain is robust, with reliable manufacturers in China providing detailed documentation, is a mark of quality.

For any laboratory or manufacturing facility focused on advanced organic chemistry or pharmaceutical development, understanding the specifications and potential of compounds like CAS 139243-54-2 is paramount. Access to high-purity, enantiomerically defined intermediates is a key driver of innovation.