| Description | Rhod-2 (sodium salt) is a water-soluble, red fluorescent calcium indicator. It exhibits a significant shift in fluorescence intensity upon calcium binding (ex max = 549 nm; calcium-free v. ex/em max = 552/581 nm; calcium-bound). [1][2] Unlike the UV-excitable indicators fura-2 and indo-1 , there is no accompanying spectral shift. |
| molecular weight | N/A |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | H2O: Moderately Soluble |
| References | 1. Paredes, R.M., Etzler, J.C., Watts, L.T., et al. Chemical calcium indicators. Methods 46(3), 143-151 (2008). 2. Minta, A., Kao, J.P., and Tsien, R.Y. Fluorescent indicators for cytosolic calcium based on rhodamine and fluorescein chromophores. The Journal of Biological Chemisty 264(14), 8171-8178 (1989). |