Magnesium citrate

Magnesium citrate
Names
	IUPAC name Magnesium 2-hydroxypropane-1,2,3-tricarboxylate
Identifiers
CAS Number	7779-25-1 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:131389 ;
ChEMBL	ChEMBL2105061 ;
ChemSpider	8605 ;
ECHA InfoCard	100.121.319
EC Number	231-923-9;
PubChem CID	24511;
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 ;
	SMILES C(C(=O)O)C(CC(=O)[O-])(C(=O)[O-])O.[Mg+2];
Properties
Chemical formula	C6H6MgO7
Molar mass	214.412 g·mol−1
Solubility in water	20 g/100ml
Pharmacology
ATC code	A06AD19 (WHO) A12CC04 (WHO), B05CB03 (WHO)
Related compounds
Related salts	Magnesium citrate (3:2)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Magnesium citrate is a magnesium preparation in salt form with citric acid in a 1:1 ratio (1 magnesium atom per citrate molecule). It contains 11.23% magnesium by weight.

The name "magnesium citrate" is ambiguous and sometimes may refer to other salts such as trimagnesium dicitrate which has a magnesium:citrate ratio of 3:2, or monomagnesium dicitrate with a ratio of 1:2, or a mix of two or three of the salts of magnesium and citric acid.

Magnesium citrate (sensu lato) is used medicinally as a saline laxative and to completely empty the bowel prior to a major surgery or colonoscopy. It is available without a prescription, both as a generic and under various brand names. It is also used in the pill form as a magnesium dietary supplement.

As a food additive, magnesium citrate is used to regulate acidity and is known as E number E345.

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