Cal Green™ 1, hexapotassium salt

Ordering information

Price
Catalog Number
Unit Size
Quantity

Add to cart

Additional ordering information

Telephone	1-800-990-8053
Fax	1-800-609-2943
Email	sales@aatbio.com
Quotation	Request
International	See distributors
Shipping	Standard overnight for United States, inquire for international

Physical properties

Dissociation constant (K_d, nM)	190
Molecular weight	1147.18
Solvent	Water

Spectral properties

Excitation (nm)	498
Emission (nm)	517
Quantum yield	0.75¹

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

Overview SDS Protocol

Molecular weight

1147.18

Dissociation constant (K_d, nM)

190

Excitation (nm)

498

Emission (nm)

517

Quantum yield

0.75¹

Cal Green™ 1 (AAT Bioquest) is the same molecule to Calcium Green-1 (Invitrogen). It exhibits an increase in fluorescence intensity upon binding calcium ion. The cell-impermeant dye, Cal Green 1 (Calcium Green-1) is a 488 nm-excitable calcium indicator. Compared to Fluo-3, Cal Green-1 is more fluorescent at low calcium concentrations, facilitating the determination of baseline calcium levels and increasing the visibility of resting cells.

Calculators

Common stock solution preparation

Table 1. Volume of Water needed to reconstitute specific mass of Cal Green™ 1, hexapotassium 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	87.17 µL	435.851 µL	871.703 µL	4.359 mL	8.717 mL
5 mM	17.434 µL	87.17 µL	174.341 µL	871.703 µL	1.743 mL
10 mM	8.717 µL	43.585 µL	87.17 µL	435.851 µL	871.703 µL

Molarity calculator

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

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
	/		=		x		=

Spectrum

Open in Advanced Spectrum Viewer

Spectral properties

Excitation (nm)	498
Emission (nm)	517
Quantum yield	0.75¹

Images

Figure 1. Chemical structure for Cal Green™ 1, hexapotassium salt

References

View all 11 references: Citation Explorer

Microscopic imaging of intracellular calcium in live cells using lifetime-based ratiometric measurements of Oregon Green BAPTA-1
Authors: Lattarulo C, Thyssen D, Kuchibholta KV, Hyman BT, Bacskaiq BJ.
Journal: Methods Mol Biol (2011): 377

Calcium Green FlAsH as a genetically targeted small-molecule calcium indicator
Authors: Tour O, Adams SR, Kerr RA, Meijer RM, Sejnowski TJ, Tsien RW, Tsien RY.
Journal: Nat Chem Biol (2007): 423

An ensemble and single-molecule fluorescence spectroscopy investigation of Calcium Green 1, a calcium-ion sensor
Authors: Lu Y, Paige MF.
Journal: J Fluoresc (2007): 739

Measurement of intracellular calcium levels by the fluorescent Ca2+ indicator Calcium-Green
Authors: Silei V, Fabrizi C, Venturini G, Tagliavini F, Salmona M, Bugiani O, Lauro GM.
Journal: Brain Res Brain Res Protoc (2000): 132

Monitoring of Ca2+ release from intracellular stores in permeabilized rat parotid acinar cells using the fluorescent indicators Mag-fura-2 and calcium green C18
Authors: Tojyo Y, Tanimura A, Matsumoto Y.
Journal: Biochem Biophys Res Commun (1997): 189

Optical imaging of neuronal activity in tissue labeled by retrograde transport of Calcium Green Dextran
Authors: McPherson DR, McClellan AD, O'Donovan MJ.
Journal: Brain Res Brain Res Protoc (1997): 157

Modulation of an Intracellular Calmodulin-Stimulated Ca2+-Pumping ATPase in Cauliflower by Trypsin (The Use of Calcium Green-5N to Measure Ca2+ Transport in Membrane Vesicles)
Authors: Askerlund P., undefined
Journal: Plant Physiol (1996): 913

A method for recording intracellular [Ca2+] transients in cardiac myocytes using calcium green-2
Authors: Spencer CI, Berlin JR.
Journal: Pflugers Arch (1995): 579

Characterization of calcium translocation across the plasma membrane of primary osteoblasts using a lipophilic calcium-sensitive fluorescent dye, calcium green C18
Authors: Lloyd QP, Kuhn MA, Gay CV.
Journal: J Biol Chem (1995): 22445

Calcium green-5N, a novel fluorescent probe for monitoring high intracellular free Ca2+ concentrations associated with glutamate excitotoxicity in cultured rat brain neurons
Authors: Rajdev S, Reynolds IJ.
Journal: Neurosci Lett (1993): 149