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OG488 BAPTA-1, hexapotassium salt [equivalent to Oregon Green® 488 BAPTA-1, hexapotassium salt] *Cell impermeant*

OG488 BAPTA -1 is the same molecule of Oregon Green 488 BAPTA-1. It is a visible light-excitable calcium indicator that is often used with FITC filter set. OG 488 BAPTA-1 has excitation and emission at 494 and 523 nm respectively. Its fluorescence intensity increases by ~14 fold upon binding calcium ion. This water-soluble, salt form is useful for intracellular loading by microinjection or infusion from patch pipette. The cell-permeant AM ester form of the indicator is also available (#20507).

Calculators

Common stock solution preparation

Table 1. Volume of Water needed to reconstitute specific mass of OG488 BAPTA-1, hexapotassium salt [equivalent to Oregon Green® 488 BAPTA-1, hexapotassium 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 mg0.5 mg1 mg5 mg10 mg
1 mM89.744 µL448.72 µL897.44 µL4.487 mL8.974 mL
5 mM17.949 µL89.744 µL179.488 µL897.44 µL1.795 mL
10 mM8.974 µL44.872 µL89.744 µL448.72 µL897.44 µL

Molarity calculator

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

Mass (Calculate)Molecular weightVolume (Calculate)Concentration (Calculate)Moles
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Spectrum

References

View all 38 references: Citation Explorer
Norepinephrine-induced calcium signaling in astrocytes in the respiratory network of the ventrolateral medulla
Authors: Schnell C, Negm M, Driehaus J, Scheller A, Hulsmann S.
Journal: Respir Physiol Neurobiol (2016): 18
Optical electrocorticogram (OECoG) using wide-field calcium imaging reveals the divergence of neuronal and glial activity during acute rodent seizures
Authors: Daniel AG, Laffont P, Zhao M, Ma H, Schwartz TH.
Journal: Epilepsy Behav (2015): 61
Two-Photon Processor and SeNeCA: a freely available software package to process data from two-photon calcium imaging at speeds down to several milliseconds per frame
Authors: Tomek J, Novak O, Syka J.
Journal: J Neurophysiol (2013): 243
Calcium buffering and clearance in spider mechanosensory neurons
Authors: Schmitz J, Hoger U, Torkkeli PH, French AS.
Journal: J Comp Physiol A Neuroethol Sens Neural Behav Physiol (2012): 477
Post hoc immunostaining of GABAergic neuronal subtypes following in vivo two-photon calcium imaging in mouse neocortex
Authors: Langer D, Helmchen F.
Journal: Pflugers Arch (2012): 339
Page updated on December 17, 2024

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Catalog Number20506
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Physical properties

Dissociation constant (Kd, nM)170

Molecular weight

1114.28

Solvent

Water

Spectral properties

Excitation (nm)

493

Emission (nm)

522

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12352200
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