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551826

Sigma-Aldrich

QUIN 2, Tetrapotassium Salt

Binding of Ca2+ leads to a major shift in UV absorption spectrum and a twenty-fold enhancement in fluorescence quantum yield.

别名:

QUIN 2, Tetrapotassium Salt, 2-{[2- bis(Carboxymethyl)amino-5-methylphenoxy]methyl}-6-methoxy-8- bis(carboxymethyl)aminoquinoline, 4K, 2-{[2-bis(Carboxymethyl)amino-5-methylphenoxy]methyl}-6-methoxy-8-bis(carboxymethyl)aminoquinoline, 4K

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About This Item

经验公式（希尔记法）:
C26H23N3O10 · 4K
CAS号:
73630-23-6
分子量:
693.87
MDL编号:
MFCD00065487
UNSPSC代码:
12352302
NACRES:
NA.25
方案:
≥95% (HPLC)
表单:
solid
溶解性:
water: 10 mg/mL

质量水平

100

方案

≥95% (HPLC)

表单

solid

制造商/商品名称

Calbiochem®

储存条件

OK to freeze
protect from light

颜色

yellow

溶解性

water: 10 mg/mL

荧光

λex 332 nm (high)
λex 354 nm (low)
λem 505 nm (high)
λem 510 nm (low)

运输

ambient

储存温度

−20°C

SMILES字符串

[K+].[K+].[K+].[K+].N(CC(=O)[O-])(CC(=O)[O-])c1c(cc(cc1)C)OCc2nc3c(cc(cc3N(CC(=O)[O-])CC(=O)[O-])OC)cc2

InChI

1S/C26H27N3O10.4K/c1-15-3-6-19(28(10-22(30)31)11-23(32)33)21(7-15)39-14-17-5-4-16-8-18(38-2)9-20(26(16)27-17)29(12-24(34)35)13-25(36)37;;;;/h3-9H,10-14H2,1-2H3,(H,30,31)(H,32,33)(H,34,35)(H,36,37);;;;/q;4*+1/p-4

InChI key

XAGUNWDMROKIFJ-UHFFFAOYSA-J

相关类别

一般描述

Binding of Ca2+ leads to a major shift in UV absorption spectrum and a twenty-fold enhancement in fluorescence quantum yield. TPEN (Cat. No. 616394) can be used in conjunction with QUIN 2 to reduce heavy-metal quenching of QUIN 2 fluorescence in cells.
Binding of Ca2+ to QUIN 2 leads to a major shift in UV absorption spectrum and a twenty-fold enhancement in fluorescence quantum yield. TPEN (Cat. No. 616394) can be used in conjunction with QUIN 2 to reduce heavy-metal quenching of QUIN 2 fluorescence in cells. Spectral properties in the presence of low calcium concentrations (ex. 354 nm, em. 510 nm) differ from those during high calcium conditions (ex. 332 nm, em. 505 nm).

生化/生理作用

Cell permeable: no
Primary Target
Calcium Probes
Product does not compete with ATP.
Reversible: no

警告

Toxicity: Irritant (B)

重悬

Following reconstitution, aliquot and freeze (-20°C) under an inert gas, pH >10. Stock solutions are stable for up to 6 months at -20°C.

其他说明

Komada, H., et al. 1989. Cell Struct. Funct. 14, 141.
Vijayaraghavan, S. and Hoskins, D. 1989. Cell Calcium10, 241.
Arslan, P., et al. 1985. J. Biol. Chem.260, 2719.
Bryant, D.T. 1985. Biochem. J.226, 613.
Grynkiewicz, G., et al. 1985. J. Biol. Chem.260, 3440.
Ashley R.H., et al. 1984. Biochem. J.219, 149.
Tsien, R.Y., et al. 1982. J. Cell Biol.94, 325.
Tsien, R.Y. 1980. Biochemistry19, 2396.

法律信息

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

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