Description
PCB 7 is a single polychlorinated biphenyl congener presented as a ROTI®Star reference standard for analytical and environmental laboratories. It is characterised by CAS number 33284-50-3, empirical formula C₁₂H₈Cl₂ and a molar mass of 223,10 g/mol, providing a clear molecular basis for calibration and identification work. Supplied in a 25 mg glass pack, the material is intended for gas-chromatographic applications, method validation and the preparation of working standards where an individual dichlorobiphenyl congener is needed. In environmental analysis, discrete PCB congeners help establish retention order, support quantitative calibration curves and enable targeted monitoring alongside multi-congener mixtures. This PCB 7 preparation from manufacturer Carl ROTH is suited to reference collections, recovery studies and routine GC workflows focused on polychlorinated biphenyls. The defined composition and convenient pack size support accurate weighing and dilution steps in quality-controlled laboratory environments handling environmental, industrial or research samples that require congener-specific data.
This article is part of ICP, AAS & ion standards, in Analytical standards & reference materials.
Key features
- Assay (GC): ≥98 %
- CAS number: 33284-50-3
- Pack size: 25 mg glass
- EG nr.: 663-511-3
- Empirical formula: C₁₂H₈Cl₂
- Molar mass: 223,10 g/mol
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about PCB 7, ROTI®Star, 25 mg, glass
What is this article?
PCB 7, ROTI®Star, 25 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.
