Etidronate disodium hydrate

≥97% (NMR), solid

Dihydrogen (1-hydroxyethylidene)bisphosphonate disodium hydrate
Empirical Formula (Hill Notation):
C2H6Na2O7P2 · xH2O
CAS Number:
Molecular Weight:
249.99 (anhydrous basis)
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


≥97% (NMR)






>300 °C


H2O: ≥10 mg/mL

storage temp.


SMILES string




InChI key



Etidronate disodium hydrate has been used in the synthesis of bisphosphonate derivatives of adenosine triphosphate (ATP)by T4 RNA ligase. It has also been sued to inhibit human farnesyl diphosphate synthase (FDPS).


10, 100 mg in glass bottle

Biochem/physiol Actions

Etidronate helps to guard chronic ocular hypertension prompted retinal oxidative stress. It stimulates the development of retinal ganglion cells through insulin-like growth factor 1 (IGF-1) signaling pathway. It may possess neuroprotective effects in in vivo and in vitro rat model of glaucoma. Etidronate belongs to bisphosphonates.
Bisphosphonate antiresorptive agent. Less potent inhibitor of farnesyl diphosphate synthase (IC50 = 80 μM) as compared to the nitrogen containing bisphosphonates


Exclamation mark

Signal Word


Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Etidronate protects chronic ocular hypertension induced retinal oxidative stress and promotes retinal ganglion cells growth through IGF-1 signaling pathway
Su J and Huang M
European Journal of Pharmacology, 841, 75-81 (2018)
Ping Yin et al.
Bioresource technology, 128, 36-43 (2012-12-01)
Novel biomass-based adsorbents organophosphonic acid functionalized spent buckwheat hulls (OPA-BH) with 60 mesh were successfully employed to adsorb Au(III) ions from simulated wastewater. The adsorption kinetics and isotherms both in unary ion system and in ternary ions system were investigated...
Meghan E Faillace et al.
Calcified tissue international, 92(1), 50-58 (2012-11-13)
Mineralizing osteoblasts are regularly used to study osteogenesis and model in vivo bone formation. Thus, it is important to verify that the mineral and matrix being formed in situ are comparable to those found in vivo. However, it has been...
Michael R McClung et al.
Calcified tissue international, 92(1), 59-67 (2012-11-15)
This 2-year trial evaluated the efficacy and tolerability of a monthly oral regimen of risedronate. Postmenopausal women with osteoporosis were randomly assigned to double-blind treatment with risedronate 75 mg on 2 consecutive days each month (2CDM) or 5 mg daily....
Synthesis of bisphosphonate derivatives of ATP by T4 RNA ligase
Sillero M A G, et al.
Febs Letters, 580(24), 5723-5727 (2006)

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