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Product Name: Mag-Indo 1
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132299-21-9

132299-21-9 structure

132299-21-9 structure

Name: Mag-Indo-1 tetrapotassium salt
Chemical Name: tetrapotassium,2-[4-[bis(carboxylatomethyl)amino]-3-(carboxylatomethoxy)phenyl]-1H-indole-6-carboxylate
CAS Number: 132299-21-9
Molecular Formula: C₂₁H₁₄K₄N₂O₉
Molecular Weight: 594.73700
Catalog: Research Areas Others
Create Date: 2016-01-07 15:50:28
Modify Date: 2025-08-28 05:39:47
Mag-Indo-1 tetrapotassium salt is a cell impermeable fluorescent probe for Mg2+ detection[1].

Name	tetrapotassium,2-[4-[bis(carboxylatomethyl)amino]-3-(carboxylatomethoxy)phenyl]-1H-indole-6-carboxylate
Synonyms	Mag-indo-1,tetrapotassium salt [Magaptra-1,tetrapotassium salt] Mag-Indo 1 Indo 1 analog tetrapotassium salt Mag-indo-1 tetrapotassium salt

Description	Mag-Indo-1 tetrapotassium salt is a cell impermeable fluorescent probe for Mg2+ detection[1].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
In Vitro	Mag-Indo-1 tetrapotassium salt can be used to determine the free Mg2+ concentration in the cytoplasmic solutions[1]. Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs)[1]. 1. Calibrating solutions containing various concentrations of Mg2+ are prepared by mixing different ratios of the two stock solutions: one contains (mM) 150 KCl, 0.1 EGTA and 5 Hepes (pH 7.2 with KOH), and the other contains 100 MgCl2, 0.1 EGTA and 5 Hepes (pH 7.2 with KOH). 2. The calibration curve is constructed using calibrating solutions containing 1 μM Mag-Indo-1 tetrapotassium salt. 3. The ‘Mg2+’ calibrating solution contained (mM): 130 KCl, 4 EDTA and 5 Hepes (pH 7.2 with KOH). 4. The relationship between the background-corrected value of the fluorescence ratio (R) and the Mg2+ concentration is fitted with the following theoretical equation. [Mg]=K (R-Rmin)/(Rmax-R), where [Mg] is the concentration of free Mg2+ ion, Rmin is the R value at 0 [Mg2+], and Rmax is the R value at saturating Mg2+. The curve fitting gave Rmin= 0.053, Rmax= 1.57, and K= 5.1 mM. Note: the specific curve can refer to the reference.
References	[1]. Ding-Hong Yan, et al. Two Kir2.1 channel populations with different sensitivities to Mg(2+) and polyamine block: a model for the cardiac strong inward rectifier K(+) channel. J Physiol. 2005 Mar 15;563(Pt 3):725-44.

Boiling Point	840.9ºC at 760mmHg
Molecular Formula	C₂₁H₁₄K₄N₂O₉
Molecular Weight	594.73700
Flash Point	462.3ºC
Exact Mass	593.92500
PSA	188.78000
Vapour Pressure	5.04E-30mmHg at 25°C

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