Description

Malathion β-Monoacid CAS NO 1642-51-9 is a key intermediate in the synthesis of the broad-spectrum organophosphate insecticide, Malathion. This compound is critical for ensuring the purity and efficacy of the final insecticidal product. It is primarily required by manufacturers in the agrochemical industry for the production of crop protection agents and public health insecticides targeting mosquitoes and other vectors.

Application

• Primary Intermediate for the synthesis of the insecticide Malathion.
• Agrochemical Manufacturing, used in the production of formulations for crop protection against a wide range of pests.
• Public Health Products, serving as a precursor in manufacturing insecticides for mosquito and vector control programs.
• Chemical Research & Development, utilized in studies to develop new derivatives or more efficient synthetic pathways for organophosphate compounds.
• Quality Control Reference Standard, used as an analytical standard to ensure the purity of Malathion technical material and formulations.

Basic Information

Product Name	Malathion β-Monoacid
CAS No.	1642-51-9
Molecular Formula	C6H11O6PS2
Molecular Weight	274.26 g/mol
Synonyms	Malathion monoacid; O,O-Dimethyl phosphorodithioate S-ester with 2-mercaptosuccinic acid; 2-[(Dimethoxyphosphorothioyl)thio]butanedioic acid; Mercaptosuccinic acid O,O-dimethyl phosphorodithioate; Malathion acid; Malathion β-acid; β-Monocarboxylic acid of malathion; S-1,2-Bis(ethoxycarbonyl)ethyl O,O-dimethyl phosphorodithioate (related isomer)
EINECS	Contact for details

Quality Control

Our Malathion β-Monoacid is produced under strict quality management protocols to ensure high purity and batch-to-batch consistency, suitable for synthesis applications. Each lot is analyzed using advanced techniques like HPLC to confirm identity and assay. A Certificate of Analysis (COA) detailing purity and impurity profiles 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, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases and oxidizing agents. For long-term storage, consider an inert atmosphere to minimize potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 0.5%

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