OG 488 BAPTA-1 AM
Chemical Name: N-[2-[(Acetyloxy)methoxy]-2-oxoethyl]-N-[4-[[[3',6'-bis(acetyloxy)-2',7'-difluoro-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl]carbonyl]amino]-2-[2-[2-[bis[2-[(acetyloxy)methoxy]-2-oxoethyl]amino]phenoxy]ethoxy]phenyl]glycine (acetyloxy)methyl ester
Biological ActivityCell-permeable, fluorescently labeled Ca2+ indicator. Composed of a green fluorescent probe (OG 488, Cat. No. 6257) conjugated to a cell-permeable Ca2+ chelator (BAPTA AM, Cat. No. 2787). Fluorescent intensity increases approximately 14-fold from resting intensity, upon Ca2+ binding. Displays uniform cellular distribution with minimal subcellular compartmentalization. Excitation/emission λ 494/523 nm.
Optical Data for OG 488 BAPTA-1 AM
|Extinction Coefficient (ε)||19000 M-1cm-1|
|Quantum Yield (φ)||0.91|
The technical data provided above is for guidance only.
For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
A comparison of fluorescent Ca2+ indicator properties and their use in measuring elementary and global Ca2+ signals
Thomas et al.
Cell Calcium, 2000;28:213
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