Description

2,2',3,3',4,6,6'-Heptachlorobiphenyl CAS NO 52663-65-7 is a specific, high-purity congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is of significant importance for analytical and research purposes, serving as a critical reference standard for environmental monitoring, toxicological studies, and regulatory compliance testing. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, method development, and quality control.

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for the quantification and identification of PCB congeners in soil, water, sediment, and air samples.
• Food and Feed Safety Testing: Serves as a critical calibration standard in GC-MS or GC-ECD systems for monitoring PCB contamination levels in the food chain to ensure regulatory compliance.
• Toxicological and Biomedical Research: Employed in studies investigating the metabolism, distribution, and long-term health effects of specific PCB congeners.
• Method Development and Validation: Essential for developing, optimizing, and validating analytical methods for PCB congener-specific analysis according to EPA, EU, and other international standards.
• Quality Assurance/Quality Control (QA/QC): Used in laboratory proficiency testing and as an internal standard to ensure the accuracy and precision of analytical data.
• Waste and Remediation Analysis: Applied in the characterization of PCB-contaminated waste materials and monitoring the effectiveness of remediation technologies.
• Regulatory Compliance and Certification: Supports testing required for international regulations such as the Stockholm Convention on POPs, REACH, and TSCA.

Basic Information

Product Name	2,2',3,3',4,6,6'-Heptachlorobiphenyl
CAS No.	52663-65-7
Molecular Formula	C12H3Cl7
Molecular Weight	395.32 g/mol
Synonyms	PCB 174; 2,2',3,3',4,6,6'-Heptachlorobiphenyl; 2,2',3,3',4,6,6'-Heptachloro-1,1'-biphenyl; Heptachlorobiphenyl (IUPAC); Biphenyl, 2,2',3,3',4,6,6'-heptachloro-; 1,1'-Biphenyl, 2,2',3,3',4,6,6'-heptachloro-; PCB Congener 174; Aroclor component (trace)
EINECS	Contact for details

Quality Control

Our high-purity reference standards are produced and verified under strict quality management protocols. Each batch undergoes comprehensive analysis using advanced techniques like GC-MS and HPLC to confirm identity and purity. We provide traceable Certificates of Analysis (COA) that include batch-specific data on purity, impurities, and analytical methods. Our quality system supports compliance with standards relevant to reference material producers, ensuring reliability for your critical analytical work.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated) or as indicated on the label or Certificate of Analysis. For long-term storage, keep desiccated and under inert atmosphere if specified. Keep away from heat and open flame.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR / NMR)	Conforms to structure
Purity (GC / HPLC)	≥ 98.0% (Area %)
Related Substances (GC-MS)	Total other PCB congeners ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene)
Certificate	COA provided with each batch

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