Description

2,3',4,5'-Tetrachlorobiphenyl CAS NO 73575-52-7 is a specific, high-purity polychlorinated biphenyl (PCB) congener essential for research, analytical, and regulatory applications. This compound serves as a critical reference standard and analytical tool for the accurate identification and quantification of PCB contaminants in environmental and biological matrices. It is primarily required by analytical laboratories, environmental testing facilities, and chemical manufacturers engaged in method development, quality control, and compliance testing.

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for calibrating instruments and validating analytical methods in the testing of soil, water, and air samples for PCB contamination.
• Toxicological and Metabolic Studies: Employed in laboratory research to study the environmental fate, metabolic pathways, and toxicological profiles of specific PCB congeners.
• Food and Feed Safety Testing: Serves as a critical standard in the analysis of PCBs in food products, animal feed, and edible oils to ensure compliance with international safety regulations.
• Waste and Remediation Analysis: Utilized for monitoring and characterizing PCB levels in industrial waste, transformer oils, and at environmental remediation sites.
• Method Development and Proficiency Testing: Acts as a key component in developing new chromatographic (GC/MS, HPLC) methods and in inter-laboratory comparison programs to ensure analytical accuracy.
• Regulatory Compliance and Forensics: Provides a definitive standard for regulatory agencies and forensic laboratories to confirm the presence and concentration of specific PCB congeners for legal and enforcement purposes.

Basic Information

Product Name	2,3',4,5'-Tetrachlorobiphenyl
CAS No.	73575-52-7
Molecular Formula	C₁₂H₆Cl₄
Molecular Weight	291.99 g/mol
Synonyms	PCB 70; 2,3',4,5'-Tetrachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3',4,5'-tetrachloro-; 2,3,4',5-Tetrachlorobiphenyl; BZ# 70; Aroclor 1254 Component (minor); Polychlorinated Biphenyl 70; 2,3',4,5'-TeCB
EINECS	Contact for details

Quality Control

Every batch of 2,3',4,5'-Tetrachlorobiphenyl is produced and analyzed under strict quality management protocols to ensure the highest standards of identity, purity, and stability required for reference materials. Our quality assurance includes comprehensive chromatographic analysis (GC-FID/GC-MS, HPLC) and spectroscopic confirmation. A detailed Certificate of Analysis (COA) is provided with each shipment, containing batch-specific data on purity, impurities, and analytical methods. We support compliance with relevant standards for analytical reagents and reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep the container tightly sealed in a dry environment to maintain stability. Store away from strong acids and organic solvents.

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 (HPLC/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.