Selenium dichloride oxide CAS 7791-23-3

Purity 97%+In StockPharmaceutical Standards
CAS No.7791-23-3
Molecular FormulaCl2OSe
Molecular Weight165.87 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Selenium dichloride oxide CAS 7791-23-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 165.87 g/mol gives Selenium dichloride oxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Selenium dichloride oxide (CAS 7791-23-3), molecular formula Cl2OSe and molecular weight 165.87 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Selenium dichloride oxide (Cl2OSe) is characterized by chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaCl2OSe
Molecular Weight165.87 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Freely soluble in water
StabilityStable under recommended storage conditions
CAS Registry Year (est.)1959
Halogen ContentCl-containing

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Why CATO?