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Sodium selenite


Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level




>350 °C (lit.)

SMILES string




InChI key


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5 g in glass bottle
100, 500 g in poly bottle

Biochem/physiol Actions

Sodium selenite is more potent than selenomethionine in reducing carcinogenesis.


Skull and crossbonesEnvironment

Signal Word


Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

Supplementary Hazards

Storage Class Code

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Product Information Sheet

Quotes and Ordering

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is Product 214485, Sodium selenite, soluble in?

    Sodium selenite is soluble in water (50 mg/mL), yielding a clear to slightly hazy, colorless to very faint yellow solution.

  4. How stable is Product 214485, Sodium selenite, in solution?

    Stock solutions of sodium selenite may be frozen.  Working aliquots are stable for 30 days at 2-8 °C.

  5. How should Product 214485, Sodium selenite, be stored?

    Sodium selenite should be stored at room temperature in a dry place.  Sodium selenite is a moisture sensitive compound.

  6. How do I find price and availability?

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  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

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