| Description | Tetrapotassium BTC is a calcium indicator with low affinity (Kd approximately 7-26 µM) that offers favorable characteristics for cellular calcium imaging, such as extended excitation wavelengths (400/485 nm), minimal sensitivity to Mg2+, and precise ratiometric measurement [1]. |
| molecular weight | 844.02 |
| Molecular formula | C33H25K4N3O12S |
| CAS | 216453-54-2 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |