Description
PCB 157 is a hexachlorobiphenyl congener supplied as a ROTI®Star reference material for chromatographic and environmental analysis. It carries CAS number 69782-90-7 and the empirical formula C₁₂H₄Cl₆, with a molar mass of 360,88 g/mol, and is packed as 10 mg in glass for precise laboratory use. Laboratories employ this congener in gas chromatography methods that require individual PCB standards for calibration, identification and quantification. Applications include environmental residue work, method validation and preparation of multi-congener mixtures where a clearly assigned hexachlorinated biphenyl is needed. The neat solid format supports direct dissolution into suitable organic solvents for stock and intermediate standards. Offered from manufacturer Carl ROTH within the ROTI®Star line, PCB 157 fits workflows focused on polychlorinated biphenyl determination in environmental and related matrices. It assists analysts in establishing chromatographic behaviour, response factors and recovery performance for hexachloro-substituted biphenyls. Use in GC-based screening and confirmatory analysis is typical; standard laboratory controls for chlorinated aromatic reference materials should be observed throughout preparation and measurement.
This article is part of ICP, AAS & ion standards, in Analytical standards & reference materials.
Key features
- Assay (GC): ≥98 %
- CAS number: 69782-90-7
- Pack size: 10 mg glass
- EG nr.: 690-279-0
- Empirical formula: C₁₂H₄Cl₆
- Molar mass: 360,88 g/mol
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about PCB 157, ROTI®Star, 10 mg, glass
What is this article?
PCB 157, ROTI®Star, 10 mg, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in ICP, AAS & ion standards, inside Analytical standards & reference materials, in Lab chemicals.
An ICP, AAS or ion standard is a solution of a stated element or ion at a stated concentration, with an uncertainty. It is the calibration point of a spectrometer or an electrode. The matrix, often dilute acid, has to match the method. A standard past its expiry is not that concentration.
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 ICP, AAS & ion standards. The catalogue is Lab chemicals.
Shelves beside this one are Chromatography standards (GC, HPLC, pesticides), 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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