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重要文件

03701

Sigma-Aldrich

乙二胺四乙酸 四钠盐 水合物

≥97.0% (KT)

同義詞:

EDTA 四钠, EDTA 四钠盐, 乙二胺四乙酸四钠盐 水合物, 依地酸

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About This Item

線性公式:
(NaOOCCH2)2NCH2CH2N(CH2COONa)2 · xH2O
CAS號碼:
分子量::
380.17 (anhydrous basis)
Beilstein:
3861753
EC號碼:
MDL號碼:
分類程式碼代碼:
12352116
PubChem物質ID:
NACRES:
NA.22
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等級

for analytical purposes

品質等級

化驗

≥97.0% (KT)

形狀

powder

官能基

amine

SMILES 字串

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

InChI

1S/C10H16N2O8.4Na.H2O/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);;;;;1H2/q;4*+1;/p-4

InChI 密鑰

GXFFSKMBMYHTAE-UHFFFAOYSA-J

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應用

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。
用于消除痕量重金属对酶的抑制作用,并抑制需要二价阳离子作为辅助因子的酶。

準備報告

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。

訊號詞

Danger

危險分類

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - STOT RE 2

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

dust mask type N95 (US), Eyeshields, Gloves


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分析證明 (COA)

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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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