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27285

Sigma-Aldrich

乙二胺四乙酸 二钠盐 二水合物

meets analytical specification of Ph. Eur., BP, USP, FCC, 99.0-101.0%

同義詞:

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

經驗公式(希爾表示法):
C10H14N2Na2O8 · 2H2O
CAS號碼:
分子量::
372.24
Beilstein:
3900609
EC號碼:
分類程式碼代碼:
12352107
PubChem物質ID:
NACRES:
NA.77

agency

tested according to BP
tested according to Ph. Eur.
tested according to USP

品質等級

法律遵循

tested according to FCC

化驗

99.0-101.0%

形狀

crystals

品質

meets analytical specification of Ph. Eur., BP, USP, FCC

反應適用性

reagent type: chelator

雜質

residual solvents, complies
≤0.001% cyanide (CN)
≤0.001% heavy metals (as Pb)
≤0.1% nitrilotriacetic acid (HPLC) (HPLC)

損耗

8.7-11.4% loss on drying, 200 °C, 3 h

pH值

4-5 (20 °C, 5%)

mp

248 °C (dec.) (lit.)

溶解度

water: soluble 100 g/L at 20 °C

負離子痕跡

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤500 mg/kg

正離子痕跡

As: ≤1 mg/kg
Ca:, in accordance
Fe: ≤10 mg/kg
Pb: ≤10 mg/kg

應用

pharmaceutical (small molecule)

SMILES 字串

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 密鑰

OVBJJZOQPCKUOR-UHFFFAOYSA-L

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一般說明

乙二胺四乙酸二钠盐二水合物或EDTA是广泛使用的二价阳离子如Ca⁺²的螯合剂。它可以抑制金属离子依赖性蛋白酶,如钙依赖性半胱氨酸蛋白酶。EDTA还可作为锌离子的螯合剂,抑制需要锌来活化的金属蛋白酶。

應用

乙二胺四乙酸二钠盐二水合物与 Na2HPO4 和柠檬酸一起用于制备 Na2EDTA-McIlvaine 缓冲液。乙二胺四乙酸二钠盐二水合物的水溶液也已用于光催化制氢
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。

其他說明

如需了解生化试剂系列的更多信息,请填写此表

象形圖

Health hazardExclamation mark

訊號詞

Warning

危險聲明

危險分類

Acute Tox. 4 Inhalation - STOT RE 2 Inhalation

標靶器官

Respiratory Tract

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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