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  2. Methylsulfonylmethane - Wikipedia

    en.wikipedia.org/wiki/Methylsulfonylmethane

    Methylsulfonylmethane is marketed as a dietary supplement with medical claims ranging from anti-inflammatory effects for pain management, skin condition and aging treatments, and immune system modulation. [9] [10] [11] No medical uses for MSM have been approved and there is limited evidence to support most of the claims.

  3. FDA warns against using contaminated eyedrops sold online

    www.aol.com/news/fda-warns-against-using...

    Both are sold online, but are considered illegal because they contain an ingredient called methylsulfonylmethane, or MSM. The chemical is sometimes used to try to treat arthritis.

  4. Check your eye drops. Bad bacteria and fungus found in ... - AOL

    www.aol.com/check-eye-drops-bad-bacteria...

    “The Dr. Berne’s and LightEyez eye drop products also contain methylsulfonylmethane (MSM) as an active ingredient,” the FDA said. “These products are unapproved drugs and illegally ...

  5. FDA issues voluntary recall of certain eye drop brands sold ...

    www.aol.com/fda-warns-certain-eye-drop-153352566...

    The Food and Drug Administration (FDA) has issued a voluntary recall on certain eye drop brands that were found to have fungal and bacterial contamination.

  6. Methyl methanesulfonate - Wikipedia

    en.wikipedia.org/wiki/Methyl_methanesulfonate

    MMS methylates DNA predominantly on N7-deoxyguanosine and N3-deoxyadenosine, and to a much lesser extent also methylates at other oxygen and nitrogen atoms in DNA bases, and also methylates one of the non-carbon bound oxygen atoms of the phosphodiester linkage.

  7. Methanesulfonyl chloride - Wikipedia

    en.wikipedia.org/wiki/Methanesulfonyl_chloride

    Methanesulfonyl chloride is mainly used to give methanesulfonates by its reaction with alcohols in the presence of a non-nucleophilic base. [8] In contrast to the formation of toluenesulfonates from alcohols and p-toluenesulfonyl chloride in the presence of pyridine, the formation of methanesulfonates is believed to proceed via a mechanism wherein methanesulfonyl chloride first undergoes an ...

  8. Over 27 Eye Drops Have Been Recalled: What You Need to Know - AOL

    www.aol.com/eye-drop-recall-know-113000380.html

    They also contained methylsulfonylmethane (MSM) as an active ingredient, which is unapproved for use in the U.S. LightEyez. LightEyez contains MSM and has drops that aren’t sterile, per the FDA.

  9. Metsulfuron-methyl - Wikipedia

    en.wikipedia.org/wiki/Metsulfuron-methyl

    Metsulfuron-methyl is an organic compound classified as a sulfonylurea herbicide, which kills broadleaf weeds and some annual grasses. [1] It is a systemic compound with foliar and soil activity, that inhibits cell division in shoots and roots.