Description

O,O,S-Trimethyl Phosphorothioate is a specific organophosphorus compound with the CAS number 152-20-5. This chemical is a key intermediate and building block in the synthesis of more complex organophosphorus derivatives, which are critical in several advanced industrial sectors. It is primarily required by manufacturers in the agrochemical and pharmaceutical industries for research and development, as well as in the production of specialized chemical products.

Application

• Agrochemical Intermediate: Serves as a crucial precursor in the synthesis of certain insecticides and pesticides.
• Pharmaceutical Research: Used as a building block in the development of novel active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Chemical Synthesis: Acts as an intermediate for producing other organophosphorus compounds used as flame retardants, plasticizers, or lubricant additives.
• Laboratory Reagent: Employed in academic and industrial research settings for studying organophosphorus chemistry and reaction mechanisms.

Basic Information

Product Name	O,O,S-Trimethyl Phosphorothioate
CAS No.	152-20-5
Molecular Formula	C3H9O3PS
Molecular Weight	156.14 g/mol
Synonyms	O,O,S-Trimethyl Phosphorothioate; Trimethyl Phosphorothioate; Phosphorothioic acid, O,O,S-trimethyl ester; S-Methyl O,O-dimethyl phosphorothioate; NSC 402245; O,O,S-TMP; O,O,S-Trimethyl thiophosphate; Dimethyl S-methyl phosphorothioate
EINECS	205-796-5

Quality Control

Our O,O,S-Trimethyl Phosphorothioate is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specific results for key parameters is provided with every shipment to guarantee it meets your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong bases and organic solvents. Recommended storage temperature is between 2°C and 8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.20 - 1.25

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