Description

1,2,3,4,5-Pentachlorobiphenyl is a specific, fully chlorinated biphenyl derivative with the CAS registry number 25429-29-2. This compound serves as a critical high-purity reference standard and a key synthetic intermediate in advanced chemical research and development. It is primarily required by analytical laboratories, environmental testing facilities, and specialty chemical manufacturers for calibration, method development, and the synthesis of more complex organohalogen compounds.

Application

• Analytical Reference Standard: Used as a certified standard for the calibration of GC-MS, HPLC, and other analytical instruments in environmental pollutant analysis.
• Environmental Research: Critical for studying the environmental fate, transport, and degradation pathways of polychlorinated biphenyls (PCBs).
• Chemical Synthesis Intermediate: Serves as a building block in organic synthesis for creating specialized derivatives or labeled compounds for tracer studies.
• Toxicological Studies: Employed in laboratory research to investigate the biochemical and toxicological effects of specific PCB congeners.
• Quality Control & Method Validation: Essential for developing and validating analytical methods in compliance with EPA, EU, and other international regulatory frameworks for persistent organic pollutants (POPs).
• Material Science Research: Used in studies related to the properties and applications of halogenated aromatic compounds.

Basic Information

Product Name	1,2,3,4,5-Pentachlorobiphenyl
CAS No.	25429-29-2
Molecular Formula	C₁₂H₅Cl₅
Molecular Weight	326.43 g/mol
Synonyms	PCB 87; 1,2,3,4,5-Pentachloro-1,1'-biphenyl; Pentachlorobiphenyl; 2,3,4,5,6-Pentachlorobiphenyl; 2,3,4,5,6-Pentachloro-1,1'-biphenyl; Biphenyl, 1,2,3,4,5-pentachloro-; Biphenyl, pentachloro-; UNII-9FZ6L8W5Q4
EINECS	Contact for details

Quality Control

Our 1,2,3,4,5-Pentachlorobiphenyl is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical verification using techniques including GC-FID, GC-MS, and NMR to ensure identity, purity, and congener specificity. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and analytical methods is provided with every shipment to support your compliance and research needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Related Substances (GC)	Total other PCB congeners ≤ 1.0%
Loss on Drying	≤ 0.5%

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