Description
PCB 57 is a defined polychlorinated biphenyl congener offered as ROTI®Star material for analytical reference use. It is identified by CAS number 70424-67-8, empirical formula C₁₂H₆Cl₄ and a molar mass of 291,99 g/mol, giving laboratories a clear chemical identity for calibration and confirmation work. This individual congener supports environmental analysis and gas-chromatographic methods in which discrete PCB structures must be resolved, quantified or used as markers within complex residue profiles. The product is supplied as a 5 mg portion in glass, a practical format for preparing stock and working solutions, spike recoveries and method-validation series. In chromatography suites focused on persistent organic pollutants, PCB 57 helps establish retention behaviour and response factors alongside related tetrachlorobiphenyls. The ROTI®Star presentation from manufacturer Carl ROTH aligns the material with routine laboratory workflows in environmental monitoring, research and quality control. Documented identifiers, including the EG number, facilitate traceability in analytical reports and standard operating procedures. Suitable for laboratories that require single-congener references rather than technical mixtures, PCB 57 contributes reliable chemical definition to GC-based PCB determination and related environmental applications.
This article is part of Chromatography standards (GC, HPLC, pesticides), in Analytical standards & reference materials.
Key features
- Assay (GC): ≥98 %
- CAS number: 70424-67-8
- Pack size: 5 mg glass
- EG nr.: 690-323-9
- Empirical formula: C₁₂H₆Cl₄
- Molar mass: 291,99 g/mol
- Storage temperature: +4 °C
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about PCB 57, ROTI®Star, 5 mg, glass
What is this article?
PCB 57, ROTI®Star, 5 mg, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Chromatography standards (GC, HPLC, pesticides), inside Analytical standards & reference materials, in Lab chemicals.
A chromatography standard is the substance, or the mix, injected so a peak can be named and quantified. Pesticide mixes, residual-solvent mixes and single-compound standards are different articles. The concentration and the solvent are the specification. The solvent has to be one the method may contain.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
Which category should I open next?
The category is Analytical standards & reference materials. The sub-category is Chromatography standards (GC, HPLC, pesticides). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Reference substances & reagents (other), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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