General description
Cell-permeable ester form of FURA 2 (Cat. No. 344900). The active dye is rapidly released in the cell by cytoplasmic esterases. Fluorescent calcium chelator (Kd = 224 nM) that offers 30X greater fluorescence intensity that QUIN 2 (Cat. No. 551826). This probe has been used as a probe in many cellular systems, including cardiac myocytes, vascular smooth muscle cells, and medullary collecting tubules. Spectral properties in the presence of low calcium concentrations (excitation max.: 362 nm, emission max.: 512 nm) differ from those during high calcium conditions (excitation max.: 335 nm, emission max.: 505 nm).
Biochem/physiol Actions
Cell permeable: no
Product does not compete with ATP.
Reversible: no
Packaging
Packaged under inert gas
Physical form
A 1 mM solution of FURA 2/AM (Cat. No. 344905) in anhydrous DMSO.
Preparation Note
Following initial thaw, aliquot and freeze (-20°C). Store frozen under an inert atmosphere.
Other Notes
Davis, M.J., et al. 1992. Am. J. Physiol. 263, H1292.
Rao, G.H., et al. 1992. Biochem. Med. Metab. Biol.47, 226.
Schwartz, Y., et al. 1992. Endocrinology131, 772.
Ward, C.A., and Moffat, M.P. 1992. J. Mol. Cell. Cardiol.24, 937.
Janconi, M.E., et al. 1990. J. Cell Biol.110, 1555.
Tsien, R.Y. 1980. Biochemistry19, 2396.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Irritant (B)
| assay | ≥95% (HPLC) |
| Quality Segment | 100 |
| form | liquid |
| manufacturer/tradename | Calbiochem® |
| storage condition | OK to freeze,protect from light |
| fluorescence | λem 505 nm (high),λex 335 nm (high),λex 362 nm (low),λem 512 nm (low) |
| shipped in | ambient |
| storage temp. | −20°C |
| SMILES string | N(CC(=O)OCOC(=O)C)(CC(=O)OCOC(=O)C)c1c(cc(cc1)C)OCCOc2c3c([o]c(c3)c4ncc([o]4)C(=O)OCOC(=O)C)ccc2N(CC(=O)OCOC(=O)C)CC(=O)OCOC(=O)C |
| InChI | 1S/C44H47N3O24/c1-25-7-8-32(46(16-38(53)65-20-60-26(2)48)17-39(54)66-21-61-27(3)49)35(13-25)58-11-12-59-42-31-14-36(43-45-15-37(71-43)44(57)69-24-64-30(6)52)70-34(31)10-9-33(42)47(18-40(55)67-22-62-28(4)50)19-41(56)68-23-63-29(5)51/h7-10,13-15H,11-12,16-24H2,1-6H3 |
| InChI key | UTBYGIDPBQOHNT-UHFFFAOYSA-N |
