Objective characteristics govern magnesium bis-glycinate chelate classification as an amino-acid coordination compound, not a food preparation or antibiotic.

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....Magnesium bis-glycinate chelate is classified by its objective characteristics and composition at importation, rather than its intended use in nutritional supplements. As a single chemically defined coordination compound, it remains within Chapter 29; water and citric acid used solely as stabilisers do not alter that treatment. Applying the Chapter Note for coordination compounds, classification follows the organic ligand obtained on cleavage of the metal bond. As the ligand is glycine, an amino acid, the product falls under CTI 2922 49 90 as other amino acids and their esters; salts thereof, and not under food preparations or antibiotics.....