Description

n-[(S)-(4-Nitrophenoxy)Phenoxyphosphinyl]-L-Alanine 2-Ethylbutyl Ester is a chiral organophosphorus compound of significant interest in advanced chemical synthesis. This high-purity intermediate is valued for its role in the development of specialized agrochemicals and pharmaceuticals, where precise stereochemistry is critical for bioactivity. It is primarily sought by research institutions and industrial manufacturers engaged in the synthesis of novel active ingredients, chiral ligands, and complex molecular architectures.

Application

• Key chiral intermediate in the research and development of novel agrochemicals, particularly insecticides and herbicides.
• Building block for the synthesis of pharmaceutical active ingredients requiring specific stereochemical configurations.
• Precursor in the development of chiral organophosphorus ligands for asymmetric catalysis.
• Intermediate for specialized polymer additives and flame retardants.
• Research chemical for biochemical studies involving enzyme inhibition or receptor binding.
• Starting material for custom synthesis services in fine chemical and contract manufacturing organizations (CMOs).

Basic Information

Product Name	n-[(S)-(4-Nitrophenoxy)Phenoxyphosphinyl]-L-Alanine 2-Ethylbutyl Ester
CAS No.	1354823-37-2
Molecular Formula	C21H25N2O7P
Molecular Weight	448.41 g/mol
Synonyms	(S)-n-[(4-Nitrophenoxy)Phenoxyphosphinyl]Alanine 2-Ethylbutyl Ester; L-Alanine, N-[(4-nitrophenoxy)phenoxyphosphinyl]-, 2-ethylbutyl ester; 2-Ethylbutyl (2S)-2-[[(4-nitrophenoxy)-phenoxyphosphinyl]amino]propanoate; Phosphoramidate derivative of L-alanine; Chiral phosphoramidate ester; Agro-chemical intermediate 1354823-37-2
EINECS	Contact for details

Quality Control

Every batch of n-[(S)-(4-Nitrophenoxy)Phenoxyphosphinyl]-L-Alanine 2-Ethylbutyl Ester is produced under strict quality management systems. Our products undergo rigorous analytical testing, including chiral HPLC and NMR, to ensure high chemical and enantiomeric purity suitable for research and process development. Certificates of Analysis (COA) with detailed chromatographic data are provided to guarantee traceability and batch-to-batch consistency.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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