Formal Name: N-[2-[2-[2-[bis(carboxymethyl)amino]-5-(6-hydroxy-3-oxo-3H-xanthen-9-yl)phenoxy]ethoxy]-4-methylphenyl]-N-(carboxymethyl)-glycine, pentapotassium salt
Purity: ≥95%
Formula Markup: C36H27N2O13 / 5K
Formula Weight: 891.09676
Notes: Fluo-2 is a cell-impermeable fluorescent calcium indicator. It binds to calcium (Kd = 290 nM) and displays excitation/emission maxima of 490/515 nm, respectively. Fluo-2 is also available in a cell-permeable form (Item No. 35758).