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Merck
CN

03677

Sigma-Aldrich

乙二胺四乙酸 二钠盐 二水合物

BioUltra, for molecular biology, ≥99.0% (T)

别名:

EDTA 二钠盐, EDTA-Na2, 乙二胺四乙酸Na2, 乙二胺四乙酸盐 二钠盐 二水合物, 二钠乙二胺四乙酸盐 二水合物, 依地酸钙钠

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About This Item

经验公式(希尔记法):
C10H14N2Na2O8 · 2H2O
CAS号:
分子量:
372.24
Beilstein:
3900609
EC 号:
UNSPSC代码:
12352107
PubChem化学物质编号:
NACRES:
NA.25

等级

for molecular biology

质量水平

产品线

BioUltra

检测方案

≥99.0% (T)

形式

powder or crystals

反应适用性

reagent type: chelator

杂质

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected

pH值(酸碱度)

4.0-5.5 (25 °C, 0.1 M in H2O)

mp

248 °C (dec.) (lit.)

溶解性

H2O: 0.1 M at 20 °C, clear, colorless

痕量阴离子

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

痕量阳离子

Al: ≤5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in H2O

紫外吸收

λ: 260 nm Amax: 0.145
λ: 280 nm Amax: 0.025

SMILES字符串

O.O.O.O.[Na+].[Na+].[Na+].[Na+].OC(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC(O)=O.OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O

InChI

1S/C10H16N2O8.2Na.2H2O/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;2*1H2/q;2*+1;;/p-2

InChI key

OVBJJZOQPCKUOR-UHFFFAOYSA-L

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应用

乙二胺四乙酸二钠盐脱水可用于研究分子生物学、生化药品、溶液和试剂、生物缓冲液、DNA 和 RNA 纯化、无机盐、必需化学品和螯合剂等。乙二胺四乙酸二钠盐二水合物已用于研究推进对牲畜中非法甲状腺抑制药物的监测。乙二胺四乙酸二钠盐二水合物经螯合树脂预富集分离后,用于 ICP-MS 测定海水中 232Th 的研究。
二价阳离子的螯合剂。 对需要二价阳离子发挥活性的酶,比如金属蛋白酶具有抑制作用。

其他说明

核酸电泳中非变性或含尿素变性聚丙烯酰胺凝胶的电泳缓冲液组分

象形图

Health hazardExclamation mark

警示用语:

Warning

危险声明

危险分类

Acute Tox. 4 Inhalation - STOT RE 2 Inhalation

靶器官

Respiratory Tract

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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