Chemical Abstract Service (CAS) registry numbers are unique identifiers for chemical substances, crucial for accurate identification and retrieval of information in scientific literature and databases. CAS 138472-22-7 refers specifically to (S)-Fmoc-Phenylalanine-4-Sulfonic Acid, a significant compound within the field of organic chemistry, particularly for its applications in peptide synthesis and pharmaceutical research.

(S)-Fmoc-Phenylalanine-4-Sulfonic Acid is characterized by its molecular formula C24H21NO7S and a molecular weight of 467.49. It is a derivative of the amino acid phenylalanine, featuring the Fmoc protecting group on the amine nitrogen and a sulfonic acid group on the phenyl ring. This dual functionality makes it a valuable intermediate. The Fmoc group is a standard protecting group used in peptide synthesis due to its orthogonal deprotection chemistry, while the sulfonic acid moiety can introduce polarity and alter the pharmacokinetic properties of resulting molecules.

For researchers and businesses looking to buy this chemical, understanding its CAS number is the first step in locating reliable sources. The global market offers several suppliers and manufacturers, with many prominent ones located in China. These companies often specialize in producing high-purity intermediates, catering to the stringent demands of the pharmaceutical and biotechnology industries. When considering where to purchase, factors like purity, consistency, available quantities, and pricing are critical.

The primary application of (S)-Fmoc-Phenylalanine-4-Sulfonic Acid is as a building block in the synthesis of peptides and peptidomimetics. Its unique structure allows for the incorporation of modified amino acids into peptide chains, enabling the creation of molecules with tailored properties. If your research or development project requires this specific intermediate, it is advisable to partner with a reputable supplier who can provide detailed specifications and technical support. Exploring options from established Chinese manufacturers can offer both quality and cost-effectiveness, ensuring your supply chain is robust and reliable.