Description
PCB 74 is a polychlorinated biphenyl congener offered as ROTI®Star material for laboratory analytical work, identified by CAS number 32690-93-0 and the empirical formula C₁₂H₆Cl₄. The compound has a molar mass of 291,99 g/mol and carries EG number 690-149-3. Supplied in a 10 mg quantity in glass, it is intended for use in environmental analysis and chromatographic applications, including gas chromatography method setup and calibration support. Defined PCB congeners help laboratories establish reliable retention data, prepare calibration solutions, and verify detector response when analysing complex environmental samples. This product from manufacturer Carl ROTH provides a practical small-pack format that suits research groups and routine testing laboratories working with polychlorinated biphenyls. Transport classification is covered under UN number 3432. The combination of a clear chemical identity, stated molar mass and convenient glass packaging makes PCB 74 a suitable choice for specialised GC workflows and broader environmental monitoring programmes that depend on well-specified congener standards.
This article is part of ICP, AAS & ion standards, in Analytical standards & reference materials.
Key features
- Assay (GC): ≥98 %
- CAS number: 32690-93-0
- Pack size: 10 mg glass
- EG nr.: 690-149-3
- Empirical formula: C₁₂H₆Cl₄
- Molar mass: 291,99 g/mol
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about PCB 74, ROTI®Star, 10 mg, glass
What is this article?
PCB 74, 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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