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Home > Products > 1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP) CAS NO:2809-21-4 > (1-Hydroxyethane-1 1-diyl)diphosphonic acid CAS NO.2809-21-4
(1-Hydroxyethane-1 1-diyl)diphosphonic acid CAS NO.2809-21-4
  • (1-Hydroxyethane-1 1-diyl)diphosphonic acid CAS NO.2809-21-4

(1-Hydroxyethane-1 1-diyl)diphosphonic acid CAS NO.2809-21-4

    Payment Type: L/C,T/T
    Incoterm: FOB,CFR,CIF
    Delivery Time: 10 Days
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Basic Info

Model No.: 2809-21-4

Additional Info

Packaging: PLASTIC DRUM

Productivity: 200,000tons per year

Brand: JINAN FOREVER

Transportation: Ocean

Place of Origin: CHINA

Supply Ability: 80,000tons per year

Certificate: ISO9000

HS Code: 293190

Port: Shanghai,Qingdao

Product Description



1-Hydroxyethylidene-1,1-diphosphonic acid Basic information
Product Name: 1-Hydroxyethylidene-1,1-Diphosphonic acid
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: Industrial/Fine Chemicals;INORGANIC & ORGANIC CHEMICALS;Analytical Chemistry;Ligands for Pharmaceutical Research;Radiopharmaceutical Chemistry (Chelating Reagents);Phosphonate antiscalant;organophosphorus compound;Water treatment
Mol File: 2809-21-4.mol
1-Hydroxyethylidene-1,1-diphosphonic acid Structure
1-Hydroxyethylidene-1,1-diphosphonic acid Chemical Properties
Melting point 198~199℃
density 1.45 (60% aq.)
pka 1.35, 2.87, 7.03, 11.3(at 25℃)
form Powder
color white
PH pH (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.
InChIKey DBVJJBKOTRCVKF-UHFFFAOYSA-N
CAS DataBase Reference 2809-21-4(CAS DataBase Reference)
EPA Substance Registry System Phosphonic acid, (1-hydroxyethylidene)bis-(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 Data 2809-21-4(Hazardous Substances Data)
1-Hydroxyethylidene-1,1-diphosphonic acid Usage And Synthesis
Chemical Properties light beige powder
Uses Etidronate (Didronel) is a human protein tyrosine phosphatase inhibitor with IC50 of 0.2 μM.
Definition ChEBI: 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 name Didronel (Millot Laboratories, France); Didronel (Procter & Gamble).


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Product Categories : 1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP) CAS NO:2809-21-4

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