Magnesium citrate (3:2)

Magnesium citrate (3:2)
Names
	IUPAC name 2-hydroxypropane-1,2,3-tricarboxylic acid; magnesium
Identifiers
CAS Number	3344-18-1 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:131389 ;
ChemSpider	2925651;
ECHA InfoCard	100.020.086
EC Number	222-093-9;
KEGG	D03265;
PubChem CID	3693607;
UNII	RHO26O1T9V ;
	InChI InChI=1S/2C6H8O7.3Mg/c27-3(8)1-6(13,5(11)12)2-4(9)10;;;/h213H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3+2/p-6 Key: PLSARIKBYIPYPF-UHFFFAOYSA-H; InChI=1/2C6H8O7.3Mg/c27-3(8)1-6(13,5(11)12)2-4(9)10;;;/h213H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3+2/p-6 Key: PLSARIKBYIPYPF-CYFPFDDLAW;
	SMILES C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.[Mg].[Mg].[Mg];
Properties
Chemical formula	C12H10Mg3O14
Molar mass	451.113 g·mol−1
Appearance	White powder
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Magnesium citrate (3:2) (3 magnesium atoms per 2 citrate molecules), also called trimagnesium bicitrate, trimagnesium dicitrate, trimagnesium citrate, or the ambiguous name magnesium citrate. The substance magnesium citrate usually has water molecules attached to it. It is a (hydrated) salt of magnesium and citric acid. It is not very soluble in water and has a bitter taste.[1] It contains 16.2% magnesium by weight. However, it can naturally only be available as nonahydrate (with 9 molecules of water to every molecule of trimagnesium bicitrate). This hydrated form only contains 12% magnesium (the metal) by weight.

References

US patent 4959222, Karl J. Nadland et al, "Magnesium additive for nutrients, feed, and medicaments", issued 1990-Sept-25

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[1] US patent 4959222, Karl J. Nadland et al, "Magnesium additive for nutrients, feed, and medicaments", issued 1990-Sept-25