For chemists and product formulators, a deep understanding of chemical structures is fundamental to their work. This knowledge allows for the strategic selection of building blocks to achieve desired molecular properties and functionalities. Boc-S-3-amino-3-(4-fluoro-phenyl)-propionic acid (CAS 479064-88-5) is a prime example of a specialized intermediate whose structure offers significant advantages in synthetic chemistry.

Let's break down its nomenclature and structural features. 'Boc' refers to the tert-butoxycarbonyl protecting group, a common and versatile protecting group for amines. This group is readily introduced and can be selectively removed under acidic conditions, making it ideal for controlled synthesis. The 'S' designation indicates the specific stereochemistry at the chiral center—in this case, the L-configuration for the amino acid alpha-carbon. This stereochemical purity is vital for applications where chirality plays a critical role, such as in pharmaceutical synthesis.

The core of the molecule is a propionic acid derivative featuring an amino group and a phenyl ring. The phenyl ring is substituted at the para (4-) position with a fluorine atom. This fluoro-substitution is a key feature. Fluorine, being highly electronegative, can significantly alter the electronic properties of the phenyl ring and the molecule as a whole. It can influence acidity, basicity, lipophilicity, and metabolic stability. As a result, compounds containing fluorinated phenyl groups are frequently found in active pharmaceutical ingredients (APIs) and agrochemicals.

When researchers decide to buy Boc-S-3-amino-3-(4-fluoro-phenyl)-propionic acid, they are seeking a reliable source for this specific chiral building block. A reputable manufacturer or supplier will provide a product with high purity, typically 97% or more, ensuring that the fluorine and Boc groups are correctly positioned and the stereochemistry is maintained. This intermediate can be used in various coupling reactions, solid-phase peptide synthesis, or as a precursor for other complex molecules.

Understanding the structure of Boc-S-3-amino-3-(4-fluoro-phenyl)-propionic acid allows chemists to anticipate its reactivity and incorporate it effectively into their synthetic strategies. Securing this material from a dependable supplier, particularly at a competitive price, is an important step in advancing research and development projects.