Ethylenediaminetetraacetic acid tetrasodium salt hydrate

• Catalog No.: E5391
• CAS Number: 194491-31-1
• M. F.: C10H14N2Na4O9
• M. W.: 398.18524
• Purity: ≥99.0%

SYNONYMS

• Title: 乙二胺四乙酸 四钠盐 水合物
• IUPAC name: tetrasodium 2-({2-[bis(carboxylatomethyl)amino]ethyl}(carboxylatomethyl)amino)acetate hydrate
• IUPAC Traditional name: tetrasodium ion(4-) edta hydrate
• Synonyms: EDTA 四钠盐; 依地酸; 乙二胺四乙酸四钠盐 水合物

DATABASE IDS

• Beilstein Number: 3861753
• EC Number: 200-573-9
• MDL Number: MFCD00150025
• PubChem SID: 24894613
• CAS Number: 194491-31-1

PROPERTIES

• Antion Traces: chloride (Cl-): ≤0.05%
• Antion Traces: sulfate (SO42-): ≤0.01%
• Cation Traces: Al: ≤0.001%
• Cation Traces: As: ≤0.0001%
• Cation Traces: Ba: ≤0.0005%
• Cation Traces: Bi: ≤0.0005%
• Cation Traces: Ca: <0.001%
• Cation Traces: Cd: ≤0.0005%
• Cation Traces: Co: ≤0.0005%
• Cation Traces: Cr: ≤0.0005%
• Cation Traces: Cu: ≤0.0005%
• Cation Traces: Fe: ≤0.0005%
• Cation Traces: Li: ≤0.0005%
• Cation Traces: Mg: ≤0.0005%
• Cation Traces: Mn: ≤0.0005%
• Cation Traces: Mo: ≤0.0005%
• Cation Traces: Ni: ≤0.0005%
• Cation Traces: Pb: ≤0.0005%
• Cation Traces: Sr: ≤0.0005%
• Cation Traces: Zn: ≤0.0005%
• Impurities: Insoluble matter, passes filter test
• Purity: ≥99.0%
• Absorption Wavelength: A0.1M/260, H2O ≤1.5
• Absorption Wavelength: A0.1M/280, H2O ≤0.06
• pH: 11.0-12.0 (0.1 M in H2O)
• Solubility: H2O: soluble0.1 M, clear, colorless
• GHS Signal Word: Danger
• GHS Hazard statements: H302-H318
• European Hazard Symbols: Harmful (Xn)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• GHS Precautionary statements: P280-P305 + P351 + P338
• Risk Statements: 22-41
• Safety Statements: 26-39-46
• German water hazard class: 2

DETAILS

Description (简体中文)

Preparation Note
室温下溶于水的最大浓度可达 1.45M。该溶液的 pH 值约为 10 至 11，而且粘度较大。
Application
EDTA 为金属蛋白酶抑制剂，有效浓度为 1-10 mM。EDTA 可用作金属蛋白酶活性中心锌离子的螯合剂，并且还可抑制其他依赖金属离子的蛋白酶，例如依赖钙的半胱氨酸蛋白酶。作为抗凝血剂时，通常使用 EDTA 的二钠或三钾盐。最佳浓度为每 mL 血液 1.5mg。