| Fura-2-acetoxymethyl ester | |
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Acetoxymethyl 2-[5-[bis[(acetoxymethoxy-oxo- methyl)methyl]amino]-4-[2-[2-[bis[(acetoxymethoxy-oxo- methyl)methyl]amino]-5-methyl-phenoxy]ethoxy]benzofuran- 2-yl]oxazole-5-carboxylate |
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Other names
Fura-2AM |
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| Identifiers | |
| CAS number | 108964-32-5 |
| PubChem | 3364574 |
| ChemSpider | 2610364 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C44H47N3O24 |
| Molar mass | 1001.85 |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Fura-2-acetoxymethyl ester, often abbreviated Fura-2AM, is a membrane-permeable derivative of the ratiometric calcium indicator Fura-2 used in biochemistry to measure cellular calcium concentrations by fluorescence. When added to cells, Fura-2AM crosses cell membranes and once inside the cell, the acetoxymethyl groups are removed by cellular esterases. Removal of the acetoxymethyl esters regenerates "Fura-2", the pentacarboxylate calcium indicator. Measurement of Ca+2-induced fluorescence at both 340 nm and 380 nm allows for calculation of calcium concentrations based 340/380 ratios. The use of the ratio automatically cancels out certain variables such as local differences in fura-2 concentration or cell thickness that would otherwise lead to artifacts when attempting to image calcium concentrations in cells.