Arsenic (III) Selenide

Synonym: Arsenic triselenide, Diselenoxodiarsaselenane, Diarsenic triselenide
CAS Number 1303-36-2 | MDL Number MFCD00014166 | EC Number 215-119-5

Arsenic (III) Selenide Chemical Structure

Product CodeAS3362
CAS Number1303-36-2
Assay (purity)99.999%
Purity methodby elemental analysis
Molecular weight386.72
Appearancebrown to black powder
Melting point360C
Molecular formulaAs2Se3
Linear formulaAs2Se3

Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing Arsenic (III) Selenide contact us at

Safety information

Signal wordDANGER
Hazard statementsH300, H330, H335
Precautionary statementsP260, P261, P264, P270, P271, P284, P301+P310, P304+P340, P310, P312, P320, P321, P330, P403+P233, P405, P501
Transport descriptionARSENIC COMPOUNDS, SOLID, N.O.S.
Hazardous class6.1
Packing groupII
In TSCA registryYes

Certificates of analysis (CoA)

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External identifiers for Arsenic triselenide

Pubchem CID14772
IUPAC Namearsenic selenide
InchI IdentifierInChI=1S/As2Se3/c3-1-5-2-4

Ereztech synthesizes and sells additional AS-compounds.

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