Name: Mag-Fura-2 tetrapotassium salt *Cell impermeant*
Brand: AAT Bioquest
SKU: 20380
Price: 232 USD
Availability: InStock

Mag-Fura-2 tetrapotassium salt

Cell impermeant

Mag-Fura-2, tetrapotassium salt is an intracellular magnesium indicator that is ratiometric and UV light-excitable. This water-soluble salt form is useful for intracellular loading by microinjection or infusion from patch pipette. This particular magnesium indicator is also used for high concentration calcium detection.

Protocol

SDS

COA

Catalog	Size	Price	Quantity
20380	1 mg	Price

Calculators

Common stock solution preparation

Table 1. Volume of Water needed to reconstitute specific mass of Mag-Fura-2 tetrapotassium salt *Cell impermeant* 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	170.451 µL	852.253 µL	1.705 mL	8.523 mL	17.045 mL
5 mM	34.09 µL	170.451 µL	340.901 µL	1.705 mL	3.409 mL
10 mM	17.045 µL	85.225 µL	170.451 µL	852.253 µL	1.705 mL

Molarity calculator

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

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
mg	÷	586.68 g/mol	=	mL	x	mM	=	mmol

References

View all 15 references: Citation Explorer

Tuning the Spectroscopic Properties of Ratiometric Fluorescent Metal Indicators: Experimental and Computational Studies on Mag-Fura-2 and Analogues

Authors:

Zhang G, Jacquemin D, Buccella D.

Journal:

J Phys Chem B. (2017)

Fluorescence measurements of free [Mg2+] by use of mag-fura 2 in Salmonella enterica

Authors:

Froschauer EM, Kolisek M, Dieterich F, Schweigel M, Schweyen RJ.

Journal:

FEMS Microbiol Lett (2004): 49

Ionic selectivity of low-affinity ratiometric calcium indicators: mag-Fura-2, Fura-2FF and BTC

Authors:

Hyrc KL, Bownik JM, Goldberg MP.

Journal:

Cell Calcium (2000): 75

Mag-Fura-2 (Furaptra) exhibits both low (microM) and high (nM) affinity for Ca2+

Authors:

Martinez-Zaguilan R, Parnami J, Martinez GM.

Journal:

Cell Physiol Biochem (1998): 158

Intracellular Mg2+ regulation in voltage-clamped Helix aspersa neurones measured with mag-fura-2 and Mg(2+)-sensitive microelectrodes

Authors:

Kennedy HJ., undefined

Journal:

Exp Physiol (1998): 449

Physical properties

Molecular weight	586.68
Solvent	Water

Spectral properties

Excitation (nm)	336
Emission (nm)	505

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
CAS	132319-57-4

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Page updated on October 13, 2025