5663. Magnesium Citrate

Nomenclature

CAS number: 7779-25-1
2-Hydroxy-1,2,3-propanetricarboxylic acid magnesium salt; Citramag (Sanochemia).
Mgx(C6H5O7)y.

Description and references

Prepn of stable, soluble form: J. L. Davenport, C. F. De Costa, US 2260004 (1941 to Pfizer). Clinical evaluation of cathartic efficacy in pediatric toxic ingestions: Y.-J. Sue et al., Ann. Emerg. Med. 24, 709 (1994); of colonoscopic prepn with magnesium citrate + bisacodyl vs castor oil, q.q.v.: C.-C. Chen et al., J. Gastroenterol. Hepatol. 14, 1219 (1999).

Derivative

Magnesium citrate dibasic.

Nomenclature

CAS number: 144-23-0
Magnesium hydrogen citrate.
C6H6MgO7; mol wt 214.41.
C 33.61%, H 2.82%, Mg 11.34%, O 52.23%.

Derivative

Magnesium citrate tribasic.

Nomenclature

CAS number: 3344-18-1; 153531-96-5 (nonahydrate) ; 6150-79-4 (tetradecahydrate)
Trimagnesium dicitrate.
C12H10Mg3O14; mol wt 451.11.
C 31.95%, H 2.23%, Mg 16.16%, O 49.65%.

Description and references

Soly of hydrated forms: A. Apelblat, J. Chem. Thermodyn. 25, 1443 (1993). Thermal decomposition of tetradecahydrate: S. A. A. Mansour, Thermochim. Acta 233, 231 (1994).

Properties

Soly in water at 298 K (m): nonahydrate 0.0482; tetradecahydrate 0.0446.

Therapeutic Category

Cathartic.

Keywords

Laxative/Cathartic