Chemicals and Drugs

Etidronic Acid

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

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

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

Chemical Identity

Chemical Information

Molecular Formula
C2H8O7P2
Molecular Weight
206.03 g/mol
CAS Registry No.
2809-21-4
IUPAC Name
(1-hydroxy-1-phosphonoethyl)phosphonic acid
InChIKey
DBVJJBKOTRCVKF-UHFFFAOYSA-N
SMILES
CC(O)(P(=O)(O)O)P(=O)(O)O
MeSH Unique ID
D012968
Source
PubChem CID 3305

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

38 entry terms
  • (1-hydroxyethylene)diphosphonic acid
  • Hydroxyethylidene Diphosphonic Acid
  • Diphosphonic Acid, Hydroxyethylidene
  • (1-hydroxyethylene)diphosphonic acid, Tetrapotassium Salt
  • 1,1-hydroxyethylenediphosphonate
  • 1-Hydroxyethane-1,1-Diphosphonate
  • 1-Hydroxyethylidene-1,1-Bisphosphonate
  • Dicalcium EHDP
  • Dicalcium Etidronate
  • Didronel
  • Disodium 1-Hydroxyethylene Diphosphonate
  • Disodium Etidronate
  • EHDP
  • Ethanehydroxydiphosphonate
  • Ethanehydroxyphosphate
  • Etidronate
  • Etidronate Disodium
  • Etidronate, Tetrapotassium Salt
  • HEDP
  • HEDSPA
  • Hydroxyethanediphosphonate
  • Phosphonic acid, (1-hydroxyethylidene)bis-, disodium salt
  • Sodium Etidronate
  • Xidifon
  • Xidiphon
  • Xydiphone
  • 1 Hydroxyethane 1,1 Diphosphonate
  • 1 Hydroxyethylidene 1,1 Bisphosphonate
  • 1,1 hydroxyethylenediphosphonate
  • 1-Hydroxyethylene Diphosphonate, Disodium
  • Diphosphonate, Disodium 1-Hydroxyethylene
  • Disodium 1 Hydroxyethylene Diphosphonate
  • EHDP, Dicalcium
  • Etidronate, Dicalcium
  • Etidronate, Disodium
  • Etidronate, Sodium
  • Salt Etidronate, Tetrapotassium
  • Tetrapotassium Salt Etidronate

MeSH Record

Aspects Covered

25 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, analysis, antagonists & inhibitors, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

History Note

2001(1973); for (1-HYDROXYETHLENE)DIPHOSPHONIC ACID use ETIDRONAT DISODIUM (NM) 1987-2000

MeSH Record

Previous Indexing

  • Organophosphorus Compounds (1972)

MeSH Hierarchy

Tree Number

  1. D02w.705w.429.500w.830w

AMA Style

References

  1. National Library of Medicine. Etidronic Acid. Medical Subject Headings (MeSH). 2026. Unique ID D012968. http://id.nlm.nih.gov/mesh/2026/D012968
  2. Etidronic Acid. In: Wikipedia. https://en.wikipedia.org/wiki/Etidronic_acid
  3. Etidronic Acid. In: Wikidata. https://www.wikidata.org/wiki/Q2758338
  4. Etidronic Acid. In: PubChem Compound. CID 3305. https://pubchem.ncbi.nlm.nih.gov/compound/3305