Description

Octachloro-1,1'-Biphenyl is a highly chlorinated biphenyl compound, a member of the polychlorinated biphenyl (PCB) family. This specific congener is valued for its chemical stability and serves as a critical reference standard and research chemical for environmental analysis and toxicological studies. It is primarily required by analytical laboratories, regulatory bodies, and research institutions focused on persistent organic pollutant (POP) monitoring, method development, and compliance testing.

Application

• Primary use as an analytical reference standard for the calibration of GC/MS, GC/ECD, and HPLC systems.
• Critical component in environmental testing for the identification and quantification of PCB congeners in soil, water, and sediment samples.
• Essential for toxicological research to study the bioaccumulation, metabolic pathways, and health effects of chlorinated biphenyls.
• Used in the development and validation of analytical methods according to EPA, ISO, and other international standards.
• Serves as a quality control material in laboratories performing POPs analysis to ensure accuracy and reproducibility.
• Applied in forensic chemistry for source identification and environmental fingerprinting of PCB contamination.

Basic Information

Product Name	Octachloro-1,1'-Biphenyl
CAS No.	55722-26-4
Molecular Formula	C₁₂H₂Cl₈
Molecular Weight	429.77 g/mol
Synonyms	1,1'-Biphenyl, octachloro-; PCB 198; 2,2',3,3',4,4',5,5'-Octachlorobiphenyl; 2,2',3,3',4,4',5,5'-Octachloro-1,1'-biphenyl; Octachlorobiphenyl; Congener 198; 2,2',3,3',4,4',5,5'-OctaCB
EINECS	Contact for details

Quality Control

Every batch of our high-purity Octachloro-1,1'-Biphenyl is produced and analyzed under strict quality management protocols. We guarantee identity, purity, and stability through comprehensive analytical techniques including GC-FID, GC-MS, and NMR. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with in-house specifications suitable for use as an analytical standard.

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 to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Related Substances (GC)	Total impurities ≤ 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.