Tetrapotassium Etidronate

CAS 67953-76-8  ·  C₂H₇KO₇P₂  ·  MW 358.39 g/mol

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3D model Tetrapotassium Etidronate, CAS 67953-76-8, molecular formula C₂H₇KO₇P₂, molar mass 358.39 g/mol
About Tetrapotassium Etidronate

Tetrapotassium Etidronate is a chemical compound registered under number CAS 67953-76-8, with the molecular formula C₂H₇KO₇P₂, and a molar mass of 358.39 g/mol.

The molecule contains 19 atoms connected by 14 chemical bonds. The full systematic IUPAC name of this compound is tetrapotassium;1,1-diphosphonatoethanol. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, polar surface area PSA = 147 Ų, 1 donors and 7 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Physicochemical properties
Molecular formulaC₂H₇KO₇P₂
Molar mass358.39 g/mol
IUPACtetrapotassium;1,1-diphosphonatoethanol
SMILESCC(O)(P(=O)([O-])[O-])P(=O)([O-])[O-].[K+].[K+].[K+].[K+]
InChIKeyDHQZXBINJKHIPR-UHFFFAOYSA-J
logP (XLogP3)—
PSA147 Ų
HBD / HBA1 / 7
PubChem CIDCID 26938 ↗
GHS safety

Signal word: Warning

GHS05
GHS05
GHS07
GHS07
GHS09
GHS09

H302 — Harmful if swallowed

H319 — Causes serious eye irritation

Scientific literature

Brak articles naukowych dla CAS 67953-76-8 w PubMed / OpenAlex / Semantic Scholar.

Synonyms
Tetrapotassium etidronate · 14860-53-8 · Tetrapotassium (1-hydroxyethylidene)bisphosphonate · EINECS 238-928-5 · CVI36ET72E · Phosphonic acid, (1-hydroxyethylidene)bis-, tetrapotassium salt · EINECS 267-956-0 · POTASSIUM ETIDRONATE · (1-Hydroxyethylidene)diphosphonic acid, tetrapotassium salt · Ethane-1-hydroxy-1,1-diphosphonic acid, tetrapotassium salt · Phosphonic acid, (1-hydroxyethylidene)bis-, potassium salt · EC 267-956-0 · 1-Hydroxylethanediphosphonic acid, potassium salt · Hydroxyethylidene diphosphonic acid, potassium salt · Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, potassium salt (1:4)
Data sources
Related molecules
📜 License & provenancePREDICTED MODEL · NOT VERIFIEDMolGod_License_1
PREDICTED MODEL — NOT VERIFIED
computed by MolGod Scientific · experimental feature (beta) · may contain errors
ILLUSTRATIVE FRAGMENT ARRANGEMENT — relative positions are not structural data

No source 3-D conformer was available to MolGod for this substance. MolGod Scientific computed this geometry from the structural formula with RDKit 2026.03.6 (ETKDGv3 conformer generation, MMFF94 force-field optimisation; lowest-energy converged conformer of a fixed-seed set). It is not a measured structure, it does not come from PubChem, and it has not been compared with experimental data. It shows one possible conformation.

This substance consists of 5 separate components (for example ions). Each component was computed separately; they are arranged radially around a layout anchor for visualisation only (at least 3.0 Å apart). Their relative positions are not a crystal structure, coordination geometry, ionic contacts or any experimentally determined arrangement.

Methods and references
  1. RDKit: Open-source cheminformatics, version 2026.03.6. Zenodo. doi:10.5281/zenodo.22140358 (all versions: doi:10.5281/zenodo.591637)
  2. Riniker S, Landrum GA. Better Informed Distance Geometry: Using What We Know To Improve Conformation Generation. J. Chem. Inf. Model. 2015, 55, 2562-2574. doi:10.1021/acs.jcim.5b00654
  3. Wang S, Witek J, Landrum GA, Riniker S. Improving Conformer Generation for Small Rings and Macrocycles Based on Distance Geometry and Experimental Torsional-Angle Preferences. J. Chem. Inf. Model. 2020, 60, 2044-2058. doi:10.1021/acs.jcim.0c00025
  4. Halgren TA. Merck molecular force field. I. Basis, form, scope, parameterization, and performance of MMFF94. J. Comput. Chem. 1996, 17, 490-519. doi:10.1002/(SICI)1096-987X(199604)17:5/6<490::AID-JCC1>3.0.CO;2-P
  5. Tosco P, Stiefl N, Landrum G. Bringing the MMFF force field to the RDKit: implementation and validation. J. Cheminform. 2014, 6, 37. doi:10.1186/s13321-014-0037-3
  6. Heller SR, McNaught A, Pletnev I, Stein S, Tchekhovskoi D. InChI, the IUPAC International Chemical Identifier. J. Cheminform. 2015, 7, 23. doi:10.1186/s13321-015-0068-4
  7. Kim S, Chen J, Cheng T, et al. PubChem 2025 update. Nucleic Acids Res. 2025, 53, D1516-D1525. doi:10.1093/nar/gkae1059 Compound record: https://pubchem.ncbi.nlm.nih.gov/compound/26938
  8. Bolton EE, Kim S, Bryant SH. PubChem3D: Conformer generation. J. Cheminform. 2011, 3, 4. doi:10.1186/1758-2946-3-4 (cited for contrast: no source 3-D conformer was available to MolGod for this record)
Tetrapotassium Etidronate (CAS 67953-76-8), C₂H₇KO₇P₂ - 3D ball-and-stick molecular model, engraved element symbols (C H K O P), MolGod STL previewDownload image

MG-STL-67953-76-8-ENGRAVED · 357,278 △ · 17 MB · SHA-256 076d72bacd0f7d73

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Tetrapotassium Etidronate (CAS 67953-76-8), C₂H₇KO₇P₂ - 3D ball-and-stick molecular model, MolGod STL previewDownload image

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Model
Tetrapotassium Etidronate · 67953-76-8
InChIKey
DHQZXBINJKHIPR-UHFFFAOYSA-J
License
CC BY-SA 4.0 International (source rights undetermined — not yet granted)
Attribution
MolGod Scientific — Tetrapotassium Etidronate (CAS 67953-76-8)
License & provenance record
Tetrapotassium Etidronate (CAS 67953-76-8) →
MolGod molecule record
Tetrapotassium Etidronate →
Source data
PubChem CID 26938 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
82755d7149a26f1dfebe7d1a5b9b434d582e201439a40480107c717f97f93c18
MD5 (STL)
644bc8de6d8cd1ed4e2c926aabd8f8a8
Model identifier
MG-STL-67953-76-8
Transformation
MolGod Scientific ball-and-stick mesh
Changes
PREDICTED geometry computed by MolGod Scientific (RDKit), NOT verified; rendered as a triangulated mesh.
Wikimedia Commons
not published yet

This license applies to the MolGod-created STL mesh, not automatically to third-party source material.

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