Determine the necessary mass, volume, or concentration for preparing a solution.
≥99.8% metals basis for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 19 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 528773997 |
|---|---|
| Sorrisos canónicos | [Se]=[W]=[Se] |
| IUPAC Name | bis(selanylidene)tungsten |
| InChIKey | ROUIDRHELGULJS-UHFFFAOYSA-N |
| INCHI | 1S/2Se.W |
| SMILES isoméricas | [Se]=[W]=[Se] |
| PubChem CID | 82910 |
| Número UN | 3281 |
| Grupo de embalagem | III |
| Peso molecular | 341.77 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Inorganic compounds |
|---|---|
| Superclass | Mixed metal/non-metal compounds |
| Classe | Miscellaneous mixed metal/non-metals |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Miscellaneous mixed metal/non-metals |
| Alternative Parents | Inorganic selenides Inorganic salts |
| Molecular Framework | Not available |
| Substituents | Inorganic selenide - Inorganic salt - Miscellaneous mixed metal/non-metal |
| Descrição | This compound belongs to the class of inorganic compounds known as miscellaneous mixed metal/non-metals. These are inorganic compounds containing non-metal as well as metal atoms but not belonging to afore mentioned classes. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Data | Item |
|---|---|---|---|
| Certificate of Analysis | Sep 17, 2026 | T119286 | |
| Certificate of Analysis | Sep 17, 2026 | T119286 | |
| Certificate of Analysis | Apr 25, 2026 | T119286 | |
| Certificate of Analysis | Oct 08, 2024 | T119286 | |
| Certificate of Analysis | Aug 22, 2024 | T119286 | |
| Certificate of Analysis | Aug 13, 2022 | T119286 | |
| Certificate of Analysis | Feb 17, 2022 | T119286 | |
| Certificate of Analysis | Feb 17, 2022 | T119286 | |
| Certificate of Analysis | Feb 17, 2022 | T119286 |
| Peso molecular | 341.800 g/mol |
|---|---|
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 343.784 Da |
| Monoisotopic Mass | 343.784 Da |
| Topological Polar Surface Area | 0.000 Ų |
| Heavy Atom Count | 3 |
| Formal Charge | 0 |
| Complexity | 18.300 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |