Description

2,2',3,3',4,4',5-Heptachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This compound is of significant importance for analytical reference standards and environmental research, enabling precise calibration and quantification in complex matrices. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, toxicology studies, and regulatory compliance monitoring.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for the calibration of GC-MS, GC-ECD, and other analytical instruments in environmental and food testing.
• Environmental Monitoring: Critical for the accurate quantification of PCB congeners in soil, sediment, water, and air samples to assess contamination levels and track remediation efforts.
• Toxicological Research: Used in laboratory studies to investigate the specific biological effects, metabolic pathways, and toxicity profiles of individual PCB congeners.
• Method Development and Validation: Essential for developing, optimizing, and validating new analytical methods for the detection of PCBs and other halogenated aromatic hydrocarbons.
• Quality Assurance/Quality Control (QA/QC): Serves as a spike or internal standard to ensure the accuracy, precision, and reliability of analytical data in compliance with protocols like EPA Method 8082.
• Regulatory Compliance Testing: Supports testing mandated by global regulations (e.g., Stockholm Convention, EU directives) concerning POPs in industrial emissions, waste, and consumer products.

Basic Information

Product Name	2,2',3,3',4,4',5-Heptachlorobiphenyl
CAS No.	35065-30-6
Molecular Formula	C₁₂H₃Cl₇
Molecular Weight	395.32 g/mol
Synonyms	PCB 170; 2,2',3,3',4,4',5-Heptachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,3',4,4',5-heptachloro-; Heptachlorobiphenyl (PCB 170); BZ# 170; Aroclor congener 170; 2,2',3,3',4,4',5-HeptaCB
EINECS	Contact for details

Quality Control

Our high-purity reference materials are produced and handled under strict quality-controlled conditions. Each batch is characterized using advanced analytical techniques to ensure identity, purity, and stability. A comprehensive Certificate of Analysis (COA) is provided, detailing the results from tests such as chromatographic purity, identity confirmation (e.g., GC-MS, NMR), and quantitative assay. We support traceability and data integrity requirements for accredited laboratories.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated) or as indicated on the product label or Certificate of Analysis. For long-term storage under an inert atmosphere, please contact us for specific recommendations. Keep the container in a dry, well-ventilated place.

Specification

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

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