Description

D-Alanine Benzyl Ester Benzenesulfonic Acid Salt is a high-purity, non-natural amino acid derivative salt, specifically the benzenesulfonate salt of the benzyl-protected D-enantiomer of alanine. This compound is a critical chiral building block and resolving agent in the synthesis of complex pharmaceuticals and bioactive peptides, where stereochemical purity is paramount. It is essential for research and production in pharmaceutical development, particularly for creating active pharmaceutical ingredients (APIs) with specific chiral configurations.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the asymmetric synthesis of antibiotics, antiviral drugs, and other therapeutic agents.
• Peptide Synthesis: Used as a protected D-amino acid building block in solid-phase and solution-phase peptide synthesis for research and drug discovery.
• Chiral Resolution Agent: Employed in the separation of racemic mixtures of amino acids or other chiral compounds due to its specific stereochemistry.
• Biochemical Research: Serves as a standard or reagent in enzymatic studies and metabolic pathway investigations involving D-amino acids.
• Agrochemical Synthesis: A potential intermediate in the production of chiral pesticides and herbicides.
• Cosmetic Peptides: Can be utilized in the development of specialized bioactive peptides for cosmetic applications.

Basic Information

Product Name	D-Alanine Benzyl Ester Benzenesulfonic Acid Salt
CAS No.	22839-12-9
Molecular Formula	C16H19NO5S
Molecular Weight	337.39 g/mol
Synonyms	D-Alanine Benzyl Ester p-Toluenesulfonate Salt; (R)-2-Aminopropionic Acid Benzyl Ester Benzenesulfonate; Benzyl D-alaninate Benzenesulfonic Acid Salt; D-Alanine Benzyl Ester Tosylate Salt; D-Alanine, benzyl ester, 4-methylbenzenesulfonate; Benzyl (R)-2-aminopropanoate benzenesulfonate; H-D-Ala-OBzl . TosOH; D-Ala-OBzl . BSA
EINECS	Contact for details

Quality Control

Our D-Alanine Benzyl Ester Benzenesulfonic Acid Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for pharmaceutical R&D and production. Certificates of Analysis (COA) detailing purity, enantiomeric excess, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under dry conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Enantiomeric Purity (Chiral 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.