Description

(4-Methylsulfanyl-Phenyl)-Phosphonic Acid is a specialized organophosphorus compound featuring a phenyl ring substituted with both a phosphonic acid group and a methylthio (methylsulfanyl) moiety. This unique structure makes it a valuable building block and ligand precursor in advanced chemical synthesis and materials science. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty materials sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and plant growth regulators, leveraging its phosphonic acid functionality.
• Ligand for Catalysis: Acts as a precursor for metal-chelating ligands in homogeneous catalysis, useful in various organic transformations.
• Surface Modification Agent: Employed to functionalize metal oxides and other surfaces, improving adhesion or imparting specific chemical properties in material coatings.
• Flame Retardant Additive: Investigated as a component in flame-retardant formulations for polymers and textiles due to its phosphorus content.
• Research & Development: A valuable tool for academic and industrial chemists exploring new reactions and properties of sulfur and phosphorus-containing aromatics.

Basic Information

Product Name	(4-Methylsulfanyl-Phenyl)-Phosphonic Acid
CAS No.	46061-42-1
Molecular Formula	C7H9O3PS
Molecular Weight	204.18 g/mol
Synonyms	(4-Methylthiophenyl)phosphonic Acid; p-(Methylthio)phenylphosphonic Acid; 4-(Methylsulfanyl)benzenephosphonic Acid; 4-Methylmercaptophenylphosphonic Acid; Phosphonic acid, P-[4-(methylthio)phenyl]-; (4-Methylmercaptophenyl)phosphonic Acid; (p-Methylthiophenyl)phosphonic Acid
EINECS	Contact for details

Quality Control

Our (4-Methylsulfanyl-Phenyl)-Phosphonic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes results from HPLC, NMR, and other relevant techniques. Our quality commitment ensures the material meets the stringent requirements for research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). The compound may be moisture-sensitive; keep the container tightly sealed when not in use. Keep away from strong oxidizers and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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