Fura-FF AM

TargetMol Chemicals

Fura-FF AM

44

348079-12-9

Chemical

Fura-FF AM

C43H43F2N3O24

1023.811

Fura-FF AM is a cell-permeable acetoxymethyl ester of the fluorescence calcium indicator fura-FF (potassium salt) . As fura-FF AM enters cells, it is hydrolyzed by intracellular esterases to produce fura-FF. Fura-FF is a difluorinated derivative of the calcium indicator fura-2 . Unlike, fura-2, fura-FF has negligible magnesium sensitivity, thus reducing interference from this cation. Fura-FF also has a higher calcium dissociation constant than fura-2 (Kd(calcium) = 6 and 0.14 uM, respectively). However, the spectral properties of fura-FF and fura-2 are similar with fura-FF displaying excitation/emission spectra of 365/514 nm in the absence of calcium, with a shift to 339/507 nm in the presence of a high calcium concentration. Low affinity calcium dyes, including fura-FF, are preferred for studying compartments with high concentrations of calcium, such as mitochondria, or in cell systems that have relatively low calcium buffering capacities, such as neuronal dendrites and spines.

3 years

CC(=O)OCOC(=O)CN(CC(=O)OCOC(C)=O)c1cc2oc(cc2cc1OCCOc1c(F)c(F)ccc1N(CC(=O)OCOC(C)=O)CC(=O)OCOC(C)=O)-c1ncc(o1)C(=O)OCOC(C)=O

-20°

12352200