Description
PCB 161 is a hexachlorobiphenyl congener offered as a ROTI®Star reference substance for analytical laboratory use. Registered under CAS number 74472-43-8 and EG number 690-298-4, it has the empirical formula C₁₂H₄Cl₆ and a molar mass of 360,88 g/mol. The product is supplied as a 5 mg quantity in glass, appropriate for careful preparation of reference and calibration solutions. PCB 161 finds application in environmental analysis, chromatography and gas chromatography, where discrete polychlorinated biphenyl congeners are needed as chemically defined standards. Available from manufacturer Carl ROTH within the ROTI®Star range, this material provides a clearly identified hexachlorinated biphenyl for GC-oriented and environmental workflows. The small glass presentation enables controlled handling of the milligram quantity, while the CAS designation and molecular formula support unambiguous use in analytical protocols. Laboratories engaged in environmental monitoring and chromatographic separations can incorporate this ROTI®Star PCB 161 whenever a specific C₁₂H₄Cl₆ congener is specified. Documented chemical identity together with a practical pack size make it a focused option for reference-standard work in gas chromatography and related environmental applications.
This article is part of ICP, AAS & ion standards, in Analytical standards & reference materials.
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Questions about PCB 161, ROTI®Star, 5 mg, glass
What is this article?
PCB 161, ROTI®Star, 5 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

