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

• Catalog No.: 54215
• CAS Number: 150-39-0
• M. F.: C10H18N2O7
• M. W.: 278.25912
• Purity: ≥98.0% (KT)

SYNONYMS

• Title: N-(2-羟乙基)乙二胺-N,N′,N′-三乙酸
• IUPAC name: 2-({2-[bis(carboxymethyl)amino]ethyl}(2-hydroxyethyl)amino)acetic acid
• IUPAC Traditional name: hedta
• Synonyms: N-(2-羟乙基)-亚乙基二氨-三乙酸; N-Carboxymethyl-N′-(2-hydroxyethyl)-N,N′-ethylenediglycine; HEDTA; HEEDTA

DATABASE IDS

• MDL Number: MFCD00004294
• EC Number: 205-759-3
• CAS Number: 150-39-0
• Beilstein Number: 1804795

PROPERTIES

• Cation Traces: Ca: ≤50 mg/kg
• Cation Traces: Cd: ≤50 mg/kg
• Cation Traces: Co: ≤50 mg/kg
• Cation Traces: Cr: ≤50 mg/kg
• Cation Traces: Cu: ≤50 mg/kg
• Cation Traces: Fe: ≤50 mg/kg
• Cation Traces: K: ≤50 mg/kg
• Cation Traces: Mg: ≤50 mg/kg
• Cation Traces: Mn: ≤50 mg/kg
• Cation Traces: Na: ≤500 mg/kg
• Cation Traces: Ni: ≤50 mg/kg
• Cation Traces: Pb: ≤50 mg/kg
• Cation Traces: Zn: ≤50 mg/kg
• Ignition Residue: ≤0.1%
• Impurities: ≤2% nitrilotriacetic acid
• Linear Formula: HOCH2CH2N(CH2CO2H)CH2CH2N(CH2CO2H)2
• Purity: ≥98.0% (KT)
• Melting Point: 212 °C (dec.)(lit.)
• Solubility: 1 M NaOH: soluble0.1 g/mL, clear, colorless
• GHS Signal Word: Warning
• GHS Hazard statements: H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• GHS Precautionary statements: P261-P305 + P351 + P338
• Risk Statements: 36/37/38
• RTECS: MB9185000
• Safety Statements: 26
• German water hazard class: 3

DETAILS

Description (English)

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 serum1; 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 M2

Description (简体中文)

Application
在光度法测定人血清中碱性磷酸酶活性的美国临床化学协会参考方法中，用作金属离子缓冲剂1；用 20mN CaCl2 滴定 Ca2+-缓冲配体的混合溶液得到游离钙离子浓度为 10-8 到 10-3M2 的标准溶液