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 (Jmol)	Interactive image
ChEBI	CHEBI:131389
ChemSpider	2925651
ECHA InfoCard	100.020.086
EC Number	222-093-9
KEGG	D03265
PubChem	3693607
InChI InChI=1S/2C6H8O7.3Mg/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3*+2/p-6 Key: PLSARIKBYIPYPF-UHFFFAOYSA-H InChI=1/2C6H8O7.3Mg/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h2*13H,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	451.11 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 dicitrate, trimagnesium citrate, or the ambiguous name magnesium citrate (which can also mean magnesium citrate (1:1)), is a 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. Compared to magnesium citrate (1:1), it is much less water-soluble, more alkaline, and contains 42.6% more magnesium by weight.

References

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