Description

Methylthiophosphonic Acid O,o-Dimethyl Ester is a key organophosphorus intermediate with significant utility in advanced chemical synthesis. Its primary value lies in its role as a versatile building block for the production of specialized agrochemicals and other fine chemicals. This product is essential for manufacturers and R&D facilities in the agrochemical, pharmaceutical, and specialty chemical industries seeking reliable, high-purity intermediates for their processes.

Application

• Agrochemical Intermediate: A critical precursor in the synthesis of organophosphate insecticides and pesticides.
• Chemical Synthesis: Serves as a versatile building block for creating complex organophosphorus compounds.
• Pharmaceutical Research: Used in the development and research of novel active pharmaceutical ingredients (APIs).
• Ligand and Catalyst Development: Employed in the preparation of specialized ligands for metal catalysis.
• Flame Retardant Research: Investigated as a potential intermediate in the development of flame-retardant materials.
• Laboratory Reagent: Utilized as a high-purity reagent for analytical and research purposes in chemical laboratories.

Basic Information

Product Name	Methylthiophosphonic Acid O,o-Dimethyl Ester
CAS No.	681-06-1
Molecular Formula	C3H9O3PS
Molecular Weight	156.14 g/mol
Synonyms	Dimethyl Methylphosphonothioate; O,O-Dimethyl Methylphosphonothioate; Methylphosphonothioic Acid O,O-Dimethyl Ester; Thiophosphonic Acid, Methyl-, O,O-Dimethyl Ester; NSC 176985; Methylthiophosphonic Acid Dimethyl Ester; Dimethyl Methylthiophosphonate
EINECS	211-667-6

Quality Control

Our production of Methylthiophosphonic Acid O,o-Dimethyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques like GC and NMR. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.200 - 1.250
Refractive Index (n20D)	1.470 - 1.480

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