Description

2,3,3',4',5,5'-Hexachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs). This compound is of significant value for research, analytical, and regulatory compliance applications due to its use as a certified reference material and analytical standard. It is primarily needed by environmental testing laboratories, chemical manufacturers engaged in legacy material analysis, and academic institutions conducting toxicological or environmental fate studies. Precise characterization of such compounds is critical for monitoring and remediation efforts.

Application

• Certified Reference Material (CRM): Used for the calibration of analytical instruments (GC, GC-MS, HPLC) to ensure accurate quantification in complex matrices.
• Environmental Analysis: Serves as a critical standard for testing soil, water, sediment, and biota samples for PCB contamination as per EPA and other international methods.
• Toxicological Research: Employed in studies investigating the specific biological effects, metabolic pathways, and persistence of individual PCB congeners.
• Quality Control & Method Development: Essential for developing, validating, and maintaining the quality of analytical methods in testing laboratories.
• Regulatory Compliance Testing: Used to verify compliance with environmental regulations concerning PCB levels in industrial discharges and consumer products.
• Forensic Chemistry: Aids in source identification and fingerprinting of PCB mixtures in environmental forensic investigations.

Basic Information

Product Name	2,3,3',4',5,5'-Hexachlorobiphenyl
CAS No.	39635-34-2
Molecular Formula	C₁₂H₄Cl₆
Molecular Weight	360.88 g/mol
Synonyms	PCB 163; 2,3,3',4',5,5'-Hexachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,3',4',5,5'-hexachloro-; BZ# 163; Congener 163; Aroclor congener 163; Hexachlorobiphenyl (IUPAC name: 2,3,3',4',5,5'-Hexachlorobiphenyl)
EINECS	Contact for details

Quality Control

Our high-purity 2,3,3',4',5,5'-Hexachlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot is thoroughly characterized using techniques including GC-FID, GC-MS, and NMR to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, chromatographic data, and storage recommendations is provided with every shipment to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). For long-term stability, storage at -20°C is recommended. Keep the container tightly sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (GC-MS)	Conforms to reference
Purity (GC-FID)	≥ 98.0%
Related Substances (GC)	Total impurities ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene, acetone)

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