Description

Methylphosphonothioic Acid o-(4-Cyanophenyl)o-Phenyl Ester is a specialized organophosphorus compound characterized by its unique thiophosphonate and cyano-substituted aromatic structure. This chemical serves as a critical advanced intermediate in the synthesis of complex molecules, offering valuable reactivity for constructing specific functional groups. It is primarily required by pharmaceutical R&D and agrochemical research laboratories for developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the research and development of novel drug candidates, particularly in medicinal chemistry programs.
• Agrochemical Synthesis: Used in the production of advanced pesticide and herbicide intermediates, leveraging its phosphonothioate moiety.
• Ligand and Catalyst Precursor: Serves as a starting material for synthesizing specialized ligands used in catalytic processes and material science.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new reactions and synthesizing complex organophosphorus compounds.
• Flame Retardant Studies: Investigated as a potential intermediate or additive in the development of flame-retardant materials due to its phosphorus content.

Basic Information

Product Name	Methylphosphonothioic Acid o-(4-Cyanophenyl)o-Phenyl Ester
CAS No.	5954-90-5
Molecular Formula	C14H12NO2PS
Molecular Weight	289.29 g/mol
Synonyms	O-(4-Cyanophenyl) O-phenyl methylphosphonothioate; Phenyl 4-cyanophenyl methylphosphonothioate; Methylphosphonothioic Acid O-Phenyl O-(4-Cyanophenyl) Ester; NSC 163066; Phosphonothioic acid, methyl-, O-(4-cyanophenyl) O-phenyl ester; Methyl O-(4-cyanophenyl) O-phenyl phosphonothioate
EINECS	Contact for details

Quality Control

Our production of Methylphosphonothioic Acid o-(4-Cyanophenyl)o-Phenyl Ester adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for research applications. Each lot is characterized and tested using advanced analytical techniques including HPLC, GC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to the potential sensitivity of the functional groups, it is recommended to store under an inert atmosphere for long-term preservation and to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.