Description

Paraquat Methosulfate is a quaternary ammonium salt widely recognized for its role as a key intermediate in the synthesis of the herbicide Paraquat dichloride. This compound is critical for ensuring the efficacy and stability of the final agrochemical product. It is primarily required by manufacturers in the agrochemical industry for herbicide production, as well as by research institutions and chemical synthesis facilities developing novel crop protection agents.

Application

• Primary Intermediate for Herbicide Synthesis: The principal use is as a direct precursor in the manufacturing of Paraquat dichloride, a potent non-selective contact herbicide.
• Agrochemical Formulation: Used in the development and production of various herbicidal formulations for agricultural and industrial weed control.
• Chemical Research & Development: Serves as a valuable building block in organic synthesis for creating new quaternary ammonium compounds with potential biological activity.
• Reference Standard: Utilized in analytical and quality control laboratories as a reference material for testing and calibrating equipment to ensure product purity.

Basic Information

Product Name	Paraquat Methosulfate
CAS No.	2074-50-2
Molecular Formula	C13H20N2O4S
Molecular Weight	300.37 g/mol
Synonyms	1,1'-Dimethyl-4,4'-bipyridinium Dimethyl Sulfate; Methyl Viologen Methosulfate; Paraquat Dimethyl Sulfate; N,N'-Dimethyl-4,4'-bipyridinium Dimethyl Sulfate; 4,4'-Bipyridinium, 1,1'-dimethyl-, salt with dimethyl sulfate (1:1); Dimethyl Viologen Methosulfate; PQMS
EINECS	218-189-1

Quality Control

Our Paraquat Methosulfate is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming identity, purity, and conformance to agreed-upon standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation and clumping.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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