Description

3-Methylsulfonyl-2,2',3',4',5-Pentachlorobiphenyl is a specialized polychlorinated biphenyl (PCB) derivative, specifically a methylsulfonyl-substituted pentachlorobiphenyl. This compound is of significant interest in analytical and environmental chemistry as a reference standard and metabolite marker for studying the environmental fate and toxicological profile of PCBs. It is primarily required by research institutions, environmental testing laboratories, and chemical manufacturers engaged in advanced analytical method development, toxicology studies, and regulatory compliance testing.

Application

• Analytical Reference Standard: Used as a high-purity standard for the calibration of instruments (GC-MS, HPLC) in the quantification of PCB metabolites and related compounds.
• Environmental Fate Studies: Serves as a critical marker in research to understand the metabolic pathways, persistence, and bioaccumulation of polychlorinated biphenyls in ecosystems.
• Toxicological Research: Employed in laboratory studies to investigate the specific biological effects, metabolic byproducts, and potential toxicity mechanisms of sulfonated PCB derivatives.
• Method Development & Validation: Essential for developing and validating new analytical methods for detecting complex halogenated organic pollutants in various matrices.
• Regulatory Compliance & Quality Control: Used by testing facilities to ensure analytical procedures meet stringent regulatory requirements for environmental monitoring and industrial hygiene.
• Chemical Synthesis Intermediate: Acts as a specialized building block or precursor in the synthesis of other organosulfur or halogenated compounds for research purposes.

Basic Information

Product Name	3-Methylsulfonyl-2,2',3',4',5-Pentachlorobiphenyl
CAS No.	66640-58-2
Molecular Formula	C₁₃H₇Cl₅O₂S
Molecular Weight	424.43 g/mol
Synonyms	3-(Methylsulfonyl)-2,2',3',4',5-pentachlorobiphenyl; PCB 3-MeSO₂; 2,2',3',4',5-Pentachloro-3-(methylsulfonyl)biphenyl; 3-Methylsulfonyl-2,2',3',4',5-pentachloro-1,1'-biphenyl; Methylsulfonyl Pentachlorobiphenyl; 3-MeSO₂-PCB; PCB Sulfone Metabolite
EINECS	Contact for details

Quality Control

Our 3-Methylsulfonyl-2,2',3',4',5-Pentachlorobiphenyl is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing to confirm identity, purity, and stability, ensuring it meets the exacting requirements for use as a reference material. A comprehensive Certificate of Analysis (COA) detailing purity (typically by HPLC or GC), identification data (IR, NMR), and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The compound is light-sensitive (store away from light). Keep the container tightly sealed in a dry environment to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%

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