Description

S,S,S-Trimethyl Phosphorotrithioate is a key organophosphorus compound widely utilized as a versatile chemical intermediate. Its primary commercial value lies in its role as a precursor for the synthesis of various agrochemicals, including insecticides and herbicides, as well as other specialty chemicals. This product is essential for manufacturers and R&D facilities in the agrochemical, pharmaceutical, and fine chemical sectors seeking a reliable building block for complex synthesis.

Application

• Agrochemical Intermediate: A critical precursor in the synthesis of organophosphate insecticides and herbicides.
• Chemical Synthesis: Serves as a versatile building block for creating other phosphorus-containing specialty chemicals and ligands.
• Pharmaceutical Research: Used in the development and research of novel active pharmaceutical ingredients (APIs) with phosphorus-based structures.
• Material Science: Potential application in the development of flame retardants, lubricant additives, and polymer modifiers.
• Laboratory Reagent: Employed as a standard or reagent in analytical and research chemistry laboratories.

Basic Information

Product Name	S,S,S-Trimethyl Phosphorotrithioate
CAS No.	681-71-0
Molecular Formula	C3H9OPS3
Molecular Weight	188.26 g/mol
Synonyms	Trimethyl Phosphorotrithioate; Phosphorotrithioic Acid, S,S,S-Trimethyl Ester; O,O,O-Trimethyl Phosphorotrithioate; Trimethyl Trithiophosphate; Folex; Merphos; DEF 6; Tributyl Phosphorotrithioite (common misnomer, verify context); S,S,S-Trimethyl Ester of Phosphorotrithioic Acid
EINECS	211-663-1

Quality Control

Our S,S,S-Trimethyl Phosphorotrithioate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay, clarity, and related substances is provided with every shipment to support your quality assurance processes.

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 acids, strong oxidizers, and heat sources. Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term stability. Recommended storage temperature is 2-8°C for extended periods.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%
Specific Gravity (20°C)	1.20 - 1.30

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