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Substance Name: Trisodium etidronate
RN: 2666-14-0
UNII: 6Z2J8X3Q6U
InChIKey: KCYJBQNPOFBNHE-UHFFFAOYSA-K

Note

  • A diphosphonate which affects calcium metabolism. It inhibits ectopic calcification and slows down bone resorption and bone turnover.

Molecular Formulas

  • C2-H5-O7-P2.3Na
  • C2-H8-O7-P2.3Na

Molecular Weight

  • 271.9725
 
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Names and Synonyms

Name of Substance

  • Trisodium etidronate

Synonyms

  • (1-Hydroxyethylidene)diphosphonic acid, trisodium salt
  • EINECS 220-200-3
  • Ethane-1-hydroxy-1,1-diphosphonic acid, trisodium salt
  • Trisodium etidronate
  • UNII-6Z2J8X3Q6U

Systematic Names

  • Diphosphonic acid, (1-hydroxyethylidene)-, trisodium salt
  • Phosphonic acid, (1-hydroxyethylidene)bis-, trisodium salt
  • Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:3)
  • Trisodium hydrogen (1-hydroxyethylidene)bisphosphonate

Registry Numbers

CAS Registry Number

  • 2666-14-0

FDA UNII

  • 6Z2J8X3Q6U

System Generated Number

  • 0002666140

Molecular Formulas

Molecular Formulas

  • C2-H5-O7-P2.3Na
  • C2-H8-O7-P2.3Na

Molecular Formula Fragments

  • C2-H5-O7-P2
  • C2-H8-O7-P2
  • COMPONENT
  • Na

Structure Descriptors

InChI

1S/C2H8O7P2.3Na/c1-2(3,10(4,5)6)11(7,8)9;;;/h3H,1H3,(H2,4,5,6)(H2,7,8,9);;;/q;3*+1/p-3

InChIKey

KCYJBQNPOFBNHE-UHFFFAOYSA-K

Smiles

CC(O)(P(=O)(O)[O-])P(=O)([O-])[O-].[Na+].[Na+].[Na+]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 1280mg/kg (1280mg/kg) KIDNEY, URETER, AND BLADDER: CHANGES IN BOTH TUBULES AND GLOMERULI Toxicology and Applied Pharmacology. Vol. 22, Pg. 661, 1972.