Description

2,3',5,5'-Tetrachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This high-purity reference standard is critical for analytical research, environmental monitoring, and regulatory compliance testing. It is primarily utilized by analytical laboratories, environmental testing agencies, and chemical manufacturers involved in the development of detection methods or remediation technologies.

Application

• Analytical Reference Standard: Used as a certified standard for the calibration of GC-MS, HPLC, and other analytical instruments in environmental and food safety testing.
• Environmental Monitoring: Essential for the accurate quantification and congener-specific analysis of PCB residues in soil, water, sediment, and air samples.
• Toxicological Research: Serves as a pure substance for studying the specific biological effects, metabolic pathways, and persistence of individual PCB congeners.
• Method Development & Validation: Employed by laboratories to develop, optimize, and validate new analytical methods for PCB detection and speciation.
• Quality Control Material: Used in the preparation of internal quality control samples and proficiency testing schemes for laboratories.
• Regulatory Compliance Testing: Supports testing to ensure compliance with international regulations (e.g., Stockholm Convention, EPA methods) regarding PCB limits.

Basic Information

Product Name	2,3',5,5'-Tetrachlorobiphenyl
CAS No.	41464-42-0
Molecular Formula	C12H6Cl4
Molecular Weight	291.99 g/mol
Synonyms	PCB 70; 2,3',5,5'-Tetrachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3',5,5'-tetrachloro-; 2,3,5,5'-Tetrachlorobiphenyl; BZ# 70; Aroclor congener 70; 2,3',5,5'-Tetrachlorodiphenyl
EINECS	Contact for details

Quality Control

Our high-purity 2,3',5,5'-Tetrachlorobiphenyl is produced and handled under strict quality management protocols. Each batch is characterized using advanced analytical techniques including GC-FID, GC-MS, and NMR to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, chromatographic data, and batch-specific information is provided to ensure traceability and support your research integrity.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated) for long-term stability. Allow the sealed container to reach ambient temperature before opening to prevent moisture condensation. Store in a cool, dry, and well-ventilated area away from incompatible materials.

Specification

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

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