Description

(2S)-2-Amino-Benzenebutanoic Acid Benzyl Ester, Tosylate Salt is a chiral, non-natural amino acid derivative of significant interest in advanced organic synthesis. This compound serves as a crucial protected building block for the construction of complex peptides and peptidomimetics, offering precise stereochemical control. It is primarily utilized by research institutions and pharmaceutical companies engaged in the development of novel therapeutic agents, including enzyme inhibitors and receptor modulators.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of new active pharmaceutical ingredients (APIs).
• Peptide Synthesis: Used as a protected amino acid derivative in solid-phase and solution-phase peptide synthesis to introduce specific structural motifs.
• Chemical Biology Research: Employed in the study of protein-protein interactions and the design of bioactive probes.
• Asymmetric Synthesis: Acts as a starting material or auxiliary for the preparation of enantiomerically pure compounds.
• Medicinal Chemistry: Facilitates structure-activity relationship (SAR) studies for drug discovery programs.
• Academic Research: Utilized in university and institutional labs for methodological development in organic chemistry.

Basic Information

Product Name	(2S)-2-Amino-Benzenebutanoic Acid Benzyl Ester, Tosylate Salt
CAS No.	117560-24-4
Molecular Formula	C24H27NO5S
Molecular Weight	441.54 g/mol
Synonyms	(S)-2-Amino-4-phenylbutyric Acid Benzyl Ester p-Toluenesulfonate Salt; L-Homophenylalanine Benzyl Ester Tosylate; (S)-2-Amino-4-phenylbutanoic Acid Benzyl Ester Tosylate; Benzyl (2S)-2-amino-4-phenylbutanoate 4-methylbenzenesulfonate; (S)-α-Aminobenzenebutanoic Acid Benzyl Ester Tosylate; (2S)-2-Amino-4-phenylbutyric Acid Benzyl Ester Tosylate Salt; Fmoc-Hph(Bzl)-OH precursor salt
EINECS	Contact for details

Quality Control

Our (2S)-2-Amino-Benzenebutanoic Acid Benzyl Ester, Tosylate Salt is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity verification, to ensure it meets the high standards required for pharmaceutical research. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. For long-term storage, consider desiccant or inert atmosphere conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Chiral Purity (HPLC)	≥99.0% ee
Loss on Drying	≤1.0%
Residue on Ignition	≤0.1%
Heavy Metals	≤20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.