Products Details

Product Name:1-Hydroxyethylidene-1,1-diphosphonic acid
CAS NO:2809-21-4
Molecular Formula:C2H8O7P2
1-Hydroxyethylidene-1,1-diphosphonic acid 2809-21-4 manufacturer
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Application: scale inhibitor and corrosion inhibitor for boiler and heat exchanger, complexing agent for cyanide free electroplating, chelating agent for soap, cleaning agent for metal and nonmetal
Synonyms:ETHANE-1-HYDROXY-1,1-DIPHOSPHONIC ACID, 95+%;(1-Hydroxyethylidene)biphosphonic acid;Hydroxyethylidene Diphosphonic acid (HEDP);1-Hydroxyethylidene-1,1-diphosphonicacid,min.95%HEDP;1-Hydroxyethan-1,1-diphosphonsure;1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID HEDP;1-Hydroxyethylidene-1,1-bis-(phosphonic acid);1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID, 98% HEDP
CAS:2809-21-4
MF:C2H8O7P2
MW:206.03
EINECS:220-552-8
Product Categories:Phosphonate antiscalant;Analytical Chemistry;Ligands for Pharmaceutical Research;Radiopharmaceutical Chemistry (Chelating Reagents);INORGANIC & ORGANIC CHEMICALS;Industrial/Fine Chemicals;Water treatment;organophosphorus compound
1-Hydroxyethylidene-1,1-diphosphonic acid Chemical Properties
Melting point 198~199℃
Boiling point 578.8±60.0 °C(Predicted)
density 1.45 (60% aq.)
form Powder
pka1.35, 2.87, 7.03, 11.3(at 25℃)
color white
PHpH (1.7→100, 25℃) : 1.3~1.8
Water Solubility Soluble in water.
Merck 14,3863
BRN 1789291
Stability:Stable. Incompatible with strong oxidizing agents.
InChIKeyDBVJJBKOTRCVKF-UHFFFAOYSA-N
CAS DataBase Reference2809-21-4(CAS DataBase Reference)
EPA Substance Registry SystemEtidronic acid (2809-21-4)
Safety Information
Hazard Codes Xi,Xn
Risk Statements 37/38-41-22
Safety Statements 26-39
RIDADR UN 3265
WGK Germany 2
RTECS SZ8562100
F 10
TSCA Yes
HazardClass 8
PackingGroup II
HS Code 29319090
Hazardous Substances Data2809-21-4(Hazardous Substances Data)
ToxicityLD50 oral in mouse: 1800mg/kg
1-Hydroxyethylidene-1,1-diphosphonic acid Usage And Synthesis
Chemical Propertieslight beige powder
UsesEtidronate (Didronel) is a human protein tyrosine phosphatase inhibitor with IC50 of 0.2 μM.
DefinitionChEBI: A 1,1-bis(phosphonic acid) that is (ethane-1,1-diyl)bis(phosphonic acid) having a hydroxy substituent at the 1-position. It inhibits the formation, growth, and dissolution of hydroxyapatite crystals by chemisorption to calcium phosphate surfaces.
Brand nameDidronel (Millot Laboratories, France); Didronel (Procter & Gamble).
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