Description

2,2',3,3',4,4',6,6'-Octachlorobiphenyl CAS NO 33091-17-7 is a specific, highly chlorinated congener of polychlorinated biphenyls (PCBs). This compound is of significant importance as a certified reference material and analytical standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is primarily needed by analytical laboratories, research institutions, and environmental agencies involved in the precise quantification and study of persistent organic pollutants (POPs) to assess contamination and meet global regulatory standards.

Application

• Certified Reference Material (CRM) for the calibration of analytical instruments (GC, GC-MS, HPLC).
• Analytical standard for the quantification of PCB congeners in environmental samples (soil, water, sediment).
• Critical component in method development and validation for POPs analysis in compliance with EPA, EU, and other international regulations.
• Research standard for studying the environmental fate, transport, and biodegradation of chlorinated biphenyls.
• Toxicological standard for investigating the biochemical and toxic effects of specific PCB congeners.
• Quality control standard for proficiency testing and inter-laboratory comparisons in environmental chemistry.
• Used in the preparation of custom calibration mixes and spiking solutions for trace-level analysis.

Basic Information

Product Name	2,2',3,3',4,4',6,6'-Octachlorobiphenyl
CAS No.	33091-17-7
Molecular Formula	C₁₂H₂Cl₈
Molecular Weight	429.79 g/mol
Synonyms	PCB 195; 2,2',3,3',4,4',6,6'-OctaCB; Octachlorobiphenyl; 2,2',3,3',4,4',6,6'-Octachlorodiphenyl; Biphenyl, 2,2',3,3',4,4',6,6'-octachloro-; 1,1'-Biphenyl, 2,2',3,3',4,4',6,6'-octachloro-; Octachlorodiphenyl; Congener 195
EINECS	Contact for details

Quality Control

Our high-purity analytical standards are produced and verified under strict quality management protocols. Each batch of 2,2',3,3',4,4',6,6'-Octachlorobiphenyl is rigorously analyzed using state-of-the-art techniques including GC-FID, GC-MS, and HPLC to ensure identity, purity, and stability. A comprehensive Certificate of Analysis (COA) is provided with each product, detailing the analytical results, lot-specific data, and traceability information to meet the stringent requirements of research and regulatory laboratories.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. For long-term storage, keep at -20°C under inert atmosphere. Allow the sealed vial to equilibrate to room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (GC/MS)	Conforms to structure
Purity (GC-FID)	≥ 98.0%
Purity (HPLC)	≥ 97.5%
Water Content (KF)	≤ 0.5%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene, acetone)

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