Description

L-Alanine, n-Hydroxy-, Ethyl Ester (9Ci) is a specialized amino acid derivative, specifically an ethyl ester of N-hydroxyalanine, with the CAS registry number 767239-17-8. This compound serves as a versatile chiral building block and intermediate in advanced organic synthesis, offering a unique combination of an amino acid backbone with an N-hydroxy functional group. It is primarily utilized by research institutions and industrial R&D departments focused on developing novel pharmaceuticals, agrochemicals, and complex bioactive molecules where precise stereochemistry and functional group manipulation are critical.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for peptidomimetics and enzyme inhibitors.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and plant growth regulators that require specific stereochemical configurations for optimal activity.
• Bioconjugation & Probe Development: Serves as a precursor for synthesizing chemical probes, affinity labels, and linkers used in biochemical and biophysical research.
• Catalyst & Ligand Preparation: Employed in the synthesis of novel chiral ligands and organocatalysts for asymmetric synthesis applications.
• Material Science Research: Acts as a monomer or functionalizing agent in the development of specialized polymers and biomaterials.
• Academic & Contract Research: Essential for methodological studies in synthetic organic chemistry and medicinal chemistry within university and CRO laboratories.

Basic Information

Product Name	L-Alanine, n-Hydroxy-, Ethyl Ester (9Ci)
CAS No.	767239-17-8
Molecular Formula	C5H11NO3
Molecular Weight	133.15 g/mol
Synonyms	Ethyl L-N-hydroxyalaninate; (S)-2-(Ethoxycarbonyl)-N-hydroxyethanaminium; N-Hydroxy-L-alanine ethyl ester; Alanine, N-hydroxy-, ethyl ester, L-; Ethyl (2S)-2-(hydroxyamino)propanoate; H-Ala(Oh)-OEt; L-N-Hydroxyalanine Ethyl Ester
EINECS	Contact for details

Quality Control

Our L-Alanine, n-Hydroxy-, Ethyl Ester (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the high standards required for research and development applications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place 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%
Chiral Purity (HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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