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Merck

47989

Sigma-Aldrich

Fura 2-AM

BioReagent, suitable for fluorescence, ≥95.0% (HPLC)

别名:

Fura 2 五(乙酰氧基甲基)酯

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About This Item

经验公式(希尔记法):
C44H47N3O24
分子量:
1001.85
Beilstein:
8183748
MDL號碼:
分類程式碼代碼:
12171500
PubChem物質ID:
NACRES:
NA.32

產品線

BioReagent

化驗

≥95.0% (HPLC)

形狀

solid

溶解度

DMSO: soluble

螢光

λex 355 nm; λem 495 nm in 0.1 M Tris pH 8.0, esterase; 10 mM Ca2+

適合性

suitable for fluorescence

儲存溫度

−20°C

SMILES 字串

CC(=O)OCOC(=O)CN(CC(=O)OCOC(C)=O)c1ccc(C)cc1OCCOc2cc3cc(oc3cc2N(CC(=O)OCOC(C)=O)CC(=O)OCOC(C)=O)-c4ncc(o4)C(=O)OCOC(C)=O

InChI

1S/C44H47N3O24/c1-25-7-8-32(46(16-39(53)65-20-60-26(2)48)17-40(54)66-21-61-27(3)49)35(11-25)58-9-10-59-36-12-31-13-37(43-45-15-38(71-43)44(57)69-24-64-30(6)52)70-34(31)14-33(36)47(18-41(55)67-22-62-28(4)50)19-42(56)68-23-63-29(5)51/h7-8,11-15H,9-10,16-24H2,1-6H3

InChI 密鑰

VPSRLGDRGCKUTK-UHFFFAOYSA-N

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一般說明

Fura 2- am(Fura 2),又称乙酰氧基甲酯,是一种钙特定比率荧光染料。为了响应钙离子,像Fura 2这样的比例度量染料改变了各自的激发或发射光谱。细胞内钙浓度由不同波长的荧光发射比或激发决定。Fura 2的发射峰在505nm,激发峰在340-380nm之间,是首选的钙指示剂。

應用

Fura 2-AM是一种常用的探针,用于测定完整活细胞中细胞质游离钙的动态变化。

特點和優勢

使用Fura 2的酯形式作为Fura 2-AM的主要好处有:

  • 可渗透细胞。
  • 容易载入细胞中。
与单波长染料相比,使用 Fura 2-AM 的另一个优点是,比率信号与以下因素无关:
  • 染料浓度。
  • 照明强度、
  • 光程长度。

其他說明

Fura-2的膜渗透性衍生物。用于将螯合剂渗透到细胞中。在细胞中发生酶促水解,产生Fura-2并保留在细胞内

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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The Ca concentration ([Ca2+]i) in single rat peritoneal mast cells was measured by means of the new fluorescent Ca-indicator dye fura-2. Dye-loaded cells were made to degranulate with either antigen or compound 48/80. In cells loaded with extracellularly applied, membrane-permeant
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