Determine the necessary mass, volume, or concentration for preparing a solution.
≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships FedEx DG Service Check lot-specific COA for exact specifications.
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.
Sodium selenite pentahydrate is a useful biochemical for proteomics research
| Pubchem Sid | 504757038 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504757038 |
| Canonical Smiles | O.O.O.O.O.[O-][Se](=O)[O-].[Na+].[Na+] |
| IUPAC Name | disodium;selenite;pentahydrate |
| InChIKey | TUANAMBRHOLYTH-UHFFFAOYSA-L |
| INCHI | 1S/2Na.H2O3Se.5H2O/c;;1-4(2)3;;;;;/h;;(H2,1,2,3);5*1H2/q2*+1;;;;;;/p-2 |
| Isomeric SMILES | O.O.O.O.O.[O-][Se](=O)[O-].[Na+].[Na+] |
| WGK Germany | 2 |
| RTECS | VS7420000 |
| PubChem CID | 134930 |
| UN Number | 2630 |
| Packing Group | I |
| Molecular Weight | 263.01 |
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 |
| Class | Alkali metal oxoanionic compounds |
| Subclass | Alkali metal selenites |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Alkali metal selenites |
| Alternative Parents | Inorganic sodium salts Inorganic oxides |
| Molecular Framework | Not available |
| Substituents | Alkali metal selenite - Inorganic sodium salt - Inorganic oxide - Inorganic salt |
| Description | This compound belongs to the class of inorganic compounds known as alkali metal selenites. These are inorganic compounds in which the largest oxoanion is selenite, and in which the heaviest atom not in an oxoanion is an alkali metal. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Jun 18, 2025 | S337199 | |
| Certificate of Analysis | Jun 18, 2025 | S337199 | |
| Certificate of Analysis | Jun 18, 2025 | S337199 | |
| Certificate of Analysis | Jun 18, 2025 | S337199 | |
| Certificate of Analysis | Feb 10, 2025 | S337199 | |
| Certificate of Analysis | Feb 10, 2025 | S337199 | |
| Certificate of Analysis | Feb 10, 2025 | S337199 | |
| Certificate of Analysis | Feb 10, 2025 | S337199 | |
| Certificate of Analysis | Feb 10, 2025 | S337199 | |
| Certificate of Analysis | Jun 07, 2024 | S337199 | |
| Certificate of Analysis | Jun 07, 2024 | S337199 | |
| Certificate of Analysis | Jun 07, 2024 | S337199 | |
| Certificate of Analysis | Jun 07, 2024 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 27, 2023 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 | |
| Certificate of Analysis | Oct 24, 2022 | S337199 |
| Sensitivity | Moisture sensitive |
|---|---|
| Molecular Weight | 263.030 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 5 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 0 |
| Exact Mass | 263.934 Da |
| Monoisotopic Mass | 263.934 Da |
| Topological Polar Surface Area | 68.200 Ų |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Complexity | 18.800 |
| 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 | 8 |
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| 2. Rongyao Wang, Jie Cao, Rui Zhang, Zhengguang Sun, Feng Wang, Huimin Wu. (2022) Self-assembly of Ni2P/CoSe2 heterostructure as bifunctional electrocatalysts for urea-water electrolysis. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, [PMID:] [10.1016/j.ijhydene.2022.06.276] |
| 3. Yan Zhou, Jingtong Zhang, Hao Ren, Yuan Pan, Youguo Yan, Fengchao Sun, Xueyuan Wang, Shutao Wang, Jun Zhang. (2019) Mo doping induced metallic CoSe for enhanced electrocatalytic hydrogen evolution. APPLIED CATALYSIS B-ENVIRONMENTAL, [PMID:] [10.1016/j.apcatb.2019.118467] |
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| 18. Xinrui Zhang, Yuqi Qiu, Huiyu Xing, Feixiang Yang, Peng Zeng, Hao Fan, Huanwen Chen, Xiaowei Fang. (2025) Extractive Electrospray Ionization Mass Spectrometry for Rapid Analysis of Organic and Inorganic Selenium in Honey. MOLECULES, 30 (21): (4206). [PMID:41226168] [10.3390/molecules30214206] |
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