{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.magnesium-diglutamate","code":"thing-q1821120","url":"https://ver.cy/models/thing/q1821120/","name":"magnesium diglutamate","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Magnesium diglutamate is the magnesium salt of glutamic acid, with two singly charged glutamate anions per magnesium ion.","purpose":"Enable an agent to recognise magnesium diglutamate, assess the identity and condition of a particular material, and determine whether evidence supports its intended use.","scope":{"in":["Magnesium-to-glutamate stoichiometry and verified substance identifiers","Glutamate stereochemistry and distinctions between anhydrous and hydrated forms","Batch composition, assay basis and relevant impurities","Physical state, dissolution behaviour and stability under recorded conditions","Hazard evidence and jurisdiction-specific qualification of a defined material grade"],"out":["Finished foods, supplements and medicines containing magnesium diglutamate","Manufacturing equipment and complete production-process models","Clinical treatment decisions and individual magnesium dosing","Glutamic acid and other glutamate salts as independent substances","Magnesium metabolism and glutamate signalling as biological systems"],"boundaries":[]},"distinguishingFeatures":["Verify magnesium and glutamate together with a nominal magnesium-to-glutamate molar ratio of 1:2; a magnesium assay alone cannot establish identity.","Distinguish glutamate from glutamine and glycinate by an analytical method that identifies the organic component.","Resolve whether the glutamate is L, D, mixed or stereochemically unspecified before treating similarly named records as equivalent.","Determine water content and hydrate identity before comparing formula masses, assays or magnesium content.","Distinguish a characterised magnesium diglutamate material from a physical mixture of magnesium ingredients and glutamic acid."],"structure":{"bundles":[{"id":"chemical-identity","name":"Chemical identity","description":"Establish what the registered name denotes and which external records describe the same substance.","layers":[{"id":"salt-composition","name":"Salt composition","description":"Identify the inorganic and organic components and their quantitative relationship.","findings":[{"id":"diglutamate-composition","name":"Diglutamate composition","description":"Use C10H16MgN2O8 as an anhydrous composition reference, while requiring evidence for the actual material. This formula is recorded by [PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/Magnesium-diglutamate).","questions":[{"text":"What evidence identifies both magnesium and glutamate and supports their 1:2 molar ratio?","id":"diglutamate-composition-q01","kind":"measurement"},{"text":"Does the sample represent the salt, or could its bulk composition also arise from a mixture of starting materials?","id":"diglutamate-composition-q02","kind":"boundary"}]}]},{"id":"stereochemistry-and-identifiers","name":"Stereochemistry and identifiers","description":"Resolve identity differences hidden by similar names.","findings":[{"id":"form-specific-record-matching","name":"Form-specific record matching","description":"Accept identifier equivalence only after comparing stereochemistry, component ratio and hydration scope.","questions":[{"text":"Does vr.tr.magnesium-diglutamate denote the L form, an unspecified stereochemical form or a broader substance grouping?","id":"form-specific-record-matching-q01","kind":"definition"},{"text":"Which CAS, PubChem and EC records have been checked against that exact interpretation?","id":"form-specific-record-matching-q02","kind":"provenance"}]}]}]},{"id":"hydration-and-physical-form","name":"Hydration and physical form","description":"Distinguish water-bearing forms and document the state of the supplied material.","layers":[{"id":"hydrate-identification","name":"Hydrate identification","description":"Separate structural water from other measured moisture.","findings":[{"id":"water-bearing-form","name":"Water-bearing form","description":"Treat tetrahydrate identity as a form requiring confirmation: the [JECFA monograph](https://www.fao.org/fileadmin/user_upload/jecfa_additives/docs/Monograph1/Additive-259.pdf) names monomagnesium di-L-glutamate tetrahydrate.","questions":[{"text":"What water-content and solid-state evidence supports the declared hydrate?","id":"water-bearing-form-q01","kind":"measurement"},{"text":"How does the evidence distinguish hydrate water from adsorbed moisture or residual processing water?","id":"water-bearing-form-q02","kind":"boundary"}]}]},{"id":"solid-state-and-thermal-events","name":"Solid state and thermal events","description":"Characterise the material form and interpret changes during heating.","findings":[{"id":"condition-dependent-physical-state","name":"Condition-dependent physical state","description":"Record crystallinity, particle form and identified thermal events without assuming every magnesium diglutamate preparation behaves alike.","questions":[{"text":"What physical form was examined, and under what temperature and humidity conditions?","id":"condition-dependent-physical-state-q01","kind":"measurement"},{"text":"Does an observed thermal event indicate dehydration, melting or decomposition, and what measurement supports that assignment?","id":"condition-dependent-physical-state-q02","kind":"measurement"}]}]}]},{"id":"batch-composition-and-grade","name":"Batch composition and grade","description":"Establish what a particular lot contains and whether its declared grade is supported.","layers":[{"id":"assay-and-mass-balance","name":"Assay and mass balance","description":"Make magnesium, glutamate and water measurements comparable.","findings":[{"id":"composition-on-a-stated-basis","name":"Composition on a stated basis","description":"Retain the analytical basis of each result before calculating content or assessing stoichiometric consistency.","questions":[{"text":"Are magnesium and glutamate results reported as received, on a dry basis or on another explicitly defined basis?","id":"composition-on-a-stated-basis-q01","kind":"measurement"},{"text":"Do the magnesium, glutamate and water measurements support the declared composition within their uncertainties?","id":"composition-on-a-stated-basis-q02","kind":"measurement"}]}]},{"id":"impurities-and-specification","name":"Impurities and specification","description":"Connect relevant contaminants and residual materials to a named acceptance specification.","findings":[{"id":"evidenced-grade","name":"Evidenced grade","description":"Support a grade claim with lot-specific results, suitable methods and an identified specification.","questions":[{"text":"Which tests address excess glutamic acid, other magnesium species, competing counterions and contaminants relevant to the intended use?","id":"evidenced-grade-q01","kind":"measurement"},{"text":"Which specification and certificate of analysis support the grade claimed for this lot?","id":"evidenced-grade-q02","kind":"provenance"}]}]}]},{"id":"solution-behaviour-and-storage","name":"Solution behaviour and storage","description":"Assess preparation of solutions and preservation of a characterised material.","layers":[{"id":"dissolution-and-speciation","name":"Dissolution and speciation","description":"Separate the weighed salt composition from its behaviour after dissolution.","findings":[{"id":"conditioned-solution-behaviour","name":"Conditioned solution behaviour","description":"Record concentration, temperature, solvent and pH; do not infer a persistent discrete magnesium diglutamate complex from the salt formula.","questions":[{"text":"What equilibrium solubility and dissolution time were measured for the specified hydrate and particle form?","id":"conditioned-solution-behaviour-q01","kind":"measurement"},{"text":"What evidence supports any claimed magnesium-glutamate association at the solution's concentration and pH?","id":"conditioned-solution-behaviour-q02","kind":"provenance"}]}]},{"id":"storage-and-reassessment","name":"Storage and reassessment","description":"Define when changed material conditions require renewed testing.","findings":[{"id":"material-change-triggers","name":"Material change triggers","description":"Use form-specific stability evidence to interpret moisture changes, caking, discolouration or altered dissolution.","questions":[{"text":"Which packaging, humidity, temperature and storage-duration conditions have supporting stability evidence?","id":"material-change-triggers-q01","kind":"provenance"},{"text":"Which observed changes require water-content testing, repeat assay or suspension of use pending assessment?","id":"material-change-triggers-q02","kind":"action"}]}]}]},{"id":"hazards-and-use-qualification","name":"Hazards and use qualification","description":"Connect the identified material to supported handling decisions and applicable use requirements.","layers":[{"id":"material-specific-hazards","name":"Material-specific hazards","description":"Evaluate hazard information against the actual form and composition.","findings":[{"id":"traceable-handling-evidence","name":"Traceable handling evidence","description":"Keep documented classification, missing data and handling recommendations distinguishable.","questions":[{"text":"Which current safety data sheet matches the supplier, composition and physical form, and what GHS classification does it report?","id":"traceable-handling-evidence-q01","kind":"provenance"},{"text":"What exposure limits or dust-handling controls apply to the planned operation, and are they substance-specific or general?","id":"traceable-handling-evidence-q02","kind":"action"}]}]},{"id":"qualified-use-boundaries","name":"Qualified use boundaries","description":"Assess intended uses against the correct identity, specification and jurisdiction.","findings":[{"id":"use-specific-eligibility","name":"Use-specific eligibility","description":"Require an explicit match between the material and the requirements governing a proposed food, laboratory or other use.","questions":[{"text":"Which current authoritative requirement governs the proposed use in the relevant jurisdiction?","id":"use-specific-eligibility-q01","kind":"provenance"},{"text":"Does this lot's stereochemistry, hydration and purity satisfy that requirement, and what evidence remains missing?","id":"use-specific-eligibility-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of magnesium diglutamate this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of magnesium diglutamate this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of magnesium diglutamate this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of magnesium diglutamate this model covers, and on what evidence?","id":"evidence-measurements-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of magnesium diglutamate this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Explain magnesium diglutamate as a flavour enhancer and magnesium salt of glutamic acid.","Report its presence in foods from ingredient lists."],"mustNot":["Hide added glutamates from buyers where labelling is required.","Present it as a medicine or magnesium treatment.","Claim it is harmful or safe beyond what food safety evaluations support."],"requiresHuman":["Using it in foods for infants or people on medical diets."]},"ethics":{"considerations":["Consumers rely on honest ingredient labels.","Unfounded fear of glutamate has stigmatized some cuisines."],"affectedParties":["Consumers","People on medical diets","Food producers"]},"owners":{"steward":"The food producer; food additive regulators approve its use.","roles":[],"masterSystems":[]},"relations":[{"target":"Q11173","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.magnesium-diglutamate","Wikidata: Q1821120 (https://www.wikidata.org/wiki/Q1821120)"]},"properties":{"applicability":"required","items":["Magnesium-to-glutamate ratio: mol Mg : mol glutamate; nominal identity target 1:2","Glutamate stereochemistry: L; D; characterised mixture; unspecified","Hydration state: Anhydrous; identified hydrate with mol H2O per formula unit; unresolved","Water content: % mass fraction, with method and sample conditioning","Magnesium content: % mass fraction or mg/g; as received or dry basis","Glutamate assay: % mass fraction or mmol/g, with reporting basis and analytical specificity","Impurity profile: Named impurities in mg/kg or % mass fraction, with detection limits","Dissolution behaviour: Equilibrium solubility in g/L and dissolution time under specified conditions","Solution pH: pH at stated concentration, solvent and temperature","Thermal behaviour: °C for identified dehydration, melting or decomposition events, with method","Identifier equivalence: Registry id linked to verified CAS, PubChem, EC or other records with form-specific scope","Use qualification: Supported; unsupported; unresolved, for a specified use, grade, jurisdiction and date"]},"recognition":{"applicability":"required","items":["A white powder or crystals.","Listed on food labels by name or by its additive number."]},"capabilities":{"applicability":"required","items":["Compare a supplier identity claim with analytical evidence for magnesium, glutamate and their ratio.","Reconcile similarly named identifiers while preserving stereochemical and hydrate distinctions.","Convert salt mass to elemental magnesium content using a verified composition and reporting basis.","Assess a batch against a named purity specification and flag missing measurements.","Evaluate dissolution and storage conditions using evidence for the actual material form.","Flag an intended use as unresolved when identity, hazard or qualification evidence is insufficient."]},"hazards":{"applicability":"required","items":["Mislabelling of additives.","Unsupported health claims either way."]},"interfaces":{"applicability":"required","items":["General Standard for Food Additives, Codex Alimentarius Commission (FAO/WHO)."]},"context":{"applicability":"required","items":["Magnesium diglutamate is encountered in chemical catalogues and research involving magnesium salts of amino acids.","Its identity matters when assessing formulations in which magnesium and glutamate are intended constituents."]}},"sources":[{"title":"Wikidata item Q1821120: magnesium diglutamate","url":"https://www.wikidata.org/wiki/Q1821120","note":"identity and sense of the item"},{"title":"Wikipedia: Magnesium diglutamate","url":"https://en.wikipedia.org/wiki/Magnesium_diglutamate","note":"general description of the item"}],"openQuestions":["Does the registry intend magnesium di-L-glutamate specifically, or magnesium diglutamate without a stereochemical restriction?","Which CAS, PubChem and EC identifiers resolve to that intended identity without conflating stoichiometry, stereochemistry or hydration?","Which hydrate and solid forms are experimentally established, and what measurements distinguish their water content and thermal behaviour?","What reliable form-specific data establish solubility, solution association and storage stability under useful operating conditions?","Which current hazard classifications, exposure limits and use specifications apply to each relevant material grade and jurisdiction?"],"resources":{"spec":"/models/things/publications/thing-q1821120/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1821120/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T11:07:08Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:27+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}