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2666-14-0

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Basic Information
CAS No.: 2666-14-0
Name: 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID TRISODIUM SALT
Article Data: 6
Molecular Structure:
Molecular Structure of 2666-14-0 (1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID TRISODIUM SALT)
Formula: C2H8 O7 P2 . 3 Na
Molecular Weight: 293.956
Synonyms: Phosphonicacid, (1-hydroxyethylidene)bis-, trisodium salt (9CI); Phosphonic acid, (1-hydroxyethylidene)di-,trisodium salt (8CI); Dequest 2015DN; Oxyethylidenediphosphonic acid trisodiumsalt; Trisodium (1-hydroxyethylidene)diphosphonate; Trisodium1-hydroxyethane-1,1-diphosphonate; Trisodiumethane-1-hydroxy-1,1-diphosphonate; Trisodium ethanol-1,1-diphosphonate
Density: g/cm3
Boiling Point: 578.8°Cat760mmHg
Flash Point: 303.8°C
Risk Codes: R22
Safety: Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of POx and Na2O.
PSA: 163.40000
LogP: 0.32240
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Chemistry

IUPAC Name: Trisodium hydroxy-(1-hydroxy-1-phosphonatoethyl)phosphinate  
Molecular Formula: C2H5O7P2•3Na
Molecular Weight: 271.98g/mol 
EINECS: 220-200-3
Boiling Point: 578.8°C at 760mmHg
Flash Point: 303.8°C 
Freely Rotating Bonds: 3 
The Cas Register Number of Trisodium etidronate is 2666-14-0.The chemical synonyms of Trisodium etidronate (CAS NO.2666-14-0) are (1-Hydroxyethylidene)bis-phosphonicacitrisodiumsalt ; (1-Hydroxyethylidene)diphosphonicacid,trisodiumsalt ; (1-Hydroxyethylidene)-diphosphonicacitrisodiumsalt ; Ethane-1-hydroxy-1,1-diphosphonicacid,trisodiumsalt ; Phosphonicacid,(1-hydroxyethylidene)bis-,trisodiumsalt ; Trisodiumetidronate ; Trisodium hydrogen (1-hydroxyethylidene)bisphosphonate ; 1-Hydroxyethylidene-1,1-bis-(phosphonic acid) trisodium salt .The molecular structure of Trisodium etidronate (CAS NO.2666-14-0) is.

Uses

 Trisodium etidronate (CAS NO.2666-14-0) is used as calcium regulator.

Toxicity Data With Reference

1.    

orl-rat LD50:1280 mg/kg

     TXAPA9    Toxicology and Applied Pharmacology. 22 (1972),661.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of POx and Na2O.
Hazard Codes: HarmfulXn
Risk Statements: 22 
R22: Harmful if swallowed.