Name: Mag-Fluo-4 potassium salt
Brand: AAT Bioquest
SKU: 20400
Price: 174 USD
Availability: InStock

Mag-Fluo-4 potassium salt

The cell-impermeant Mag-Fluo-4 is an analog of Fluo-4 with a Kd for Mg ion of 4.7 mM and a Kd for Ca ion of 22 µM, making it useful as an intracellular Mg ion indicator as well as a low-affinity Ca ion indicator.

Protocol

SDS

COA

Catalog	Size	Price	Quantity
20400	10x50 ug	Price

Calculators

Common stock solution preparation

Table 1. Volume of Water needed to reconstitute specific mass of Mag-Fluo-4 potassium salt to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

	0.1 mg	0.5 mg	1 mg	5 mg	10 mg
1 mM	146.677 µL	733.385 µL	1.467 mL	7.334 mL	14.668 mL
5 mM	29.335 µL	146.677 µL	293.354 µL	1.467 mL	2.934 mL
10 mM	14.668 µL	73.339 µL	146.677 µL	733.385 µL	1.467 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
mg	÷	681.77 g/mol	=	mL	x	mM	=	mmol

References

View all 25 references: Citation Explorer

Real-time intra-store confocal Ca2+ imaging in isolated mouse cardiomyocytes

Authors:

Fern, undefined and ez-Tenorio M, Niggli E.

Journal:

Cell Calcium. (2016)

Redistribution of subcellular calcium and its effect on apoptosis in primary cultures of rat proximal tubular cells exposed to lead

Authors:

Wang H, Wang ZK, Jiao P, Zhou XP, Yang DB, Wang ZY, Wang L.

Journal:

Toxicology (2015): 137

Role of Mitofusin-2 in mitochondrial localization and calcium uptake in skeletal muscle

Authors:

Ainbinder A, Boncompagni S, Protasi F, Dirksen RT.

Journal:

Cell Calcium (2015): 14

TRPC1 is involved in Ca(2)(+) influx and cytotoxicity following Pb(2)(+) exposure in human embryonic kidney cells

Authors:

Zhang H, Li W, Xue Y, Zou F.

Journal:

Toxicol Lett (2014): 52

Tetanic Ca2+ transient differences between slow- and fast-twitch mouse skeletal muscle fibres: a comprehensive experimental approach

Authors:

Calderon JC, Bolanos P, Caputo C.

Journal:

J Muscle Res Cell Motil (2014): 279

Physical properties

Dissociation constant (K_d, nM)	22000
Molecular weight	681.77
Solvent	Water

Spectral properties

Extinction coefficient (cm ^-1 M ^-1)	82000
Excitation (nm)	495
Emission (nm)	528
Quantum yield	0.16 ¹

Storage, safety and handling

H-phrase	H303, H313, H333
Hazard symbol	XN
Intended use	Research Use Only (RUO)
R-phrase	R20, R21, R22
Storage	Freeze (< -15 °C); Minimize light exposure
UNSPSC	12352200

Documents

Protocol
Safety Data Sheet
Certificate of Analysis

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Page updated on October 20, 2025