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54215 Sigma-Aldrich

N-(2-Hydroxyethyl)ethylenediamine-N,N′,N′-triacetic acid

≥98.0% (KT)

Synonym: N-Carboxymethyl-N′-(2-hydroxyethyl)-N,N′-ethylenediglycine, HEDTA, HEEDTA

  • CAS Number 150-39-0

  • Linear Formula HOCH2CH2N(CH2CO2H)CH2CH2N(CH2CO2H)2

  • Molecular Weight 278.26

  •  Beilstein Registry Number 1804795

  •  EC Number 205-759-3

  •  MDL number MFCD00004294

  •  PubChem Substance ID 329758023

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Properties

Related Categories Chelation/Complexation Compounds, Chemical Synthesis, EDTA Derivatives, Synthetic Reagents
InChI Key   URDCARMUOSMFFI-UHFFFAOYSA-N
assay   ≥98.0% (KT)
impurities   ≤2% nitrilotriacetic acid
ign. residue   ≤0.1%
mp   212 °C (dec.)(lit.)
solubility   1 M NaOH: soluble0.1 g/mL, clear, colorless
cation traces   Ca: ≤50 mg/kg
  Cd: ≤50 mg/kg
  Co: ≤50 mg/kg
  Cr: ≤50 mg/kg
  Cu: ≤50 mg/kg
  Fe: ≤50 mg/kg
  K: ≤50 mg/kg
  Mg: ≤50 mg/kg
  Mn: ≤50 mg/kg
  Na: ≤500 mg/kg
  Ni: ≤50 mg/kg
  Pb: ≤50 mg/kg
  Zn: ≤50 mg/kg

Description

Application

Used as a metal ion buffer in an American Association of Clinical Chemistry reference method for the photometric measurement of alkaline phosphatase activity in human serum; Titration of a mixture of Ca2+-buffering ligands with 20 mN CaCl2 yields standards with free calcium ion concentrations from 10-8 to 10-3 M

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Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
MB9185000

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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H7154 N-(2-Hydroxyethyl)ethylenediamine-N,N′,N′-triacetic acid, BioXtra, ≥98%

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