Pharm-Rx Magnesium Oxide

Pharm-Rx Magnesium Oxide, composed of magnesium oxide, functions in over-the-counter (OTC) capacities within pharmaceuticals and nutraceuticals. Categorized as an active pharmaceutical ingredient (API) under pharmaceutical actives and precursors in pharmaceuticals and nutraceuticals technologies, it is a significant compound used in various pharmaceutical formulations and dietary supplements due to its properties related to magnesium supplementation.

Chemical Name: Magnesium Oxide

CAS Number: 1309-48-4

Chemical Inventories: AICS (Australia), DSL (Canada), ECL (Korea), EINECS (EU), ENCS (Japan), IECSC (China), NZIoC (New Zealand), PICCS (Phillipines), TSCA (USA)

Certifications & Compliance: California Proposition 65, FDA 29 CFR 1910.1200, Generally Recognized As Safe (GRAS)

Synonyms: Magnesia, MgO

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    Identification & Functionality

    Chemical Name
    Pharma & Nutraceuticals Functions
    Molecular formula

    Magnesium Oxide, after ignition, contains not less than 96.0% and not more than 100.5% of magnesium oxide (MgO).

    Applications & Uses


    Physical Form
    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight40.30

    Regulatory & Compliance

    Packaging & Availability

    Labelling Information

    Label it to indicate its bulk density. The indicated density may be in the form of a range.

    Storage & Handling

    Storage Information

    Preserve in tight containers.