Pharm-Rx Selenomethionine USP

Pharm-Rx Selenomethionine USP is a certified mineral source ingredient, containing selenomethionine as the active ingredient. Compliant with USP standards, it is ideal for pharma and nutraceutical applications.

Ingredient Name: Selenomethionine

Mineral Type: Selenium

Synonyms: (2S)-2-Amino-4-(methylseleno)butanoic acid, (2S)-2-Azaniumyl-4-methylselanylbutanoate, Seleno-L-methionine, L-Selenomethionine, Vitaselenium, Selenomax

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    Enhanced TDS

    Identification & Functionality

    Ingredient Name
    Mineral Type
    Food Ingredients Functions
    Pharma & Nutraceuticals Functions
    Molecular formula
    Product Families
    Chemical Structure

    Pharm-Rx SelenomethionineUSP - Chemical Structure - 1


    Selenomethionine contains NLT 97.0% and NMT 103.0% of selenomethionine (C₅H₁₁NO₂Se) and contains NLT 39.0% and NMT 41.0% of selenium (Se), both calculated on the as-is basis.

    Applications & Uses


    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight196.11--

    Regulatory & Compliance

    Certifications & Compliance
    FDA Disclaimer

    These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

    USP Reference Standards
    • USP l-Methionine RS
    • USP Selenomethionine RS

    Storage & Handling

    Storage Information

    Preserve in well-closed containers.