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The Food Supplements Purity Criteria (Magnesium L-threonate monohydrate) (England) Regulations 2026

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Change 1

What to do with it
As published

Schedule PURITY CRITERIA FOR MAGNESIUM L-THREONATE MONOHYDRATE

Regulation 2 Synonym | Magnesium L-threonate Definition Chemical name | Magnesium (2R,3S)-2,3,4-trihydroxybutanoate monohydrate CAS number | 500304-76-7 Chemical formula | C8H16MgO 11 Molecular weight | 312.51 Da Colour (solid) | White Assay | Magnesium: 7.2% to 8.3% L-threonate: 82% to 91% Description | A water-soluble white powder which is manufactured via a chemical synthetic process. Identification Solubility | Soluble in water at 1% concentration at 25℃ and that is clear in solution at 1% concentration. pH USP (1% in H₂O) | 5.8 to 7.0 Purity Loss on drying | Not more than 5.0% (105℃/4 hours) Oxalic acid/oxalate | Not more than 0.5% (as oxalic acid) Arsenic | Not more than 1 ppm Lead | Not more than 0.5 ppm Cadmium | Not more than 0.2 ppm Mercury | Not more than 0.1 ppm

Your change, as a redline

Schedule PURITY CRITERIA FOR MAGNESIUM L-THREONATE MONOHYDRATE

Regulation 2 Synonym | Magnesium L-threonate Definition Chemical name | Magnesium (2R,3S)-2,3,4-trihydroxybutanoate monohydrate CAS number | 500304-76-7 Chemical formula | C8H16MgO 11 Molecular weight | 312.51 Da Colour (solid) | White Assay | Magnesium: 7.2% to 8.3% L-threonate: 82% to 91% Description | A water-soluble white powder which is manufactured via a chemical synthetic process. Identification Solubility | Soluble in water at 1% concentration at 25℃ and that is clear in solution at 1% concentration. pH USP (1% in H₂O) | 5.8 to 7.0 Purity Loss on drying | Not more than 5.0% (105℃/4 hours) Oxalic acid/oxalate | Not more than 0.5% (as oxalic acid) Arsenic | Not more than 1 ppm Lead | Not more than 0.5 ppm Cadmium | Not more than 0.2 ppm Mercury | Not more than 0.1 ppm

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