4-Chlorobenzeneselenol CAS 16645-10-6

Purity 97%+In StockPharmaceutical Standards
CAS No.16645-10-6
Molecular FormulaC6H4ClSe
Molecular Weight190.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chlorobenzeneselenol CAS 16645-10-6 chemical structure

Description

4-Chlorobenzeneselenol (CAS 16645-10-6) is a high-purity analytical reference standard with the molecular formula C6H4ClSe and a molecular weight of 190.51 g/mol.

4-Chlorobenzeneselenol (C6H4ClSe) contains chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

As a certified reference material (CRM), 4-Chlorobenzeneselenol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC6H4ClSe
Molecular Weight190.51 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961
Halogen ContentCl-containing

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