Arsenic(III) selenide CAS 1303-36-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1303-36-2
Molecular FormulaAs2Se3
Molecular Weight386.72 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Arsenic(III) selenide CAS 1303-36-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 386.72 g/mol gives Arsenic(III) selenide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Arsenic(III) selenide (CAS 1303-36-2), molecular formula As2Se3 and molecular weight 386.72 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an inorganic composition, Arsenic(III) selenide is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 386.72 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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), Arsenic(III) selenide 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 FormulaAs2Se3
Molecular Weight386.72 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Freely soluble in water
StabilityStable under recommended storage conditions
CAS Registry Year (est.)1957

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Why CATO?