| Description | Dihydroisopimaric acid activates BK channels alphabeta1, which are large conductance Ca 2+ activated K + channels. This compound directly measures the opening of BKalphabeta1 under a whole-cell voltage clamp. |
| In vitro | Effects of these compounds (10 microM) on the membrane potential of HEKBKalphabeta1 were monitored by use of DiBAC(4)(3), a voltage-sensitive dye. Dihydroisopimaric acid induces substantial membrane hyperpolarization. Dihydroisopimaric acid (1-10 microM) activates BKalphabeta1 in the direct measurement of BKalphabeta1 opening under whole-cell voltage clamp[1]. |
| molecular weight | 304.474 |
| Molecular formula | C20H32O2 |
| CAS | 5673-36-9 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| References | 1. Imaizumi Y, et al. Molecular basis of pimarane compounds as novel activators of large-conductance Ca(2+)-activated K(+) channel alpha-subunit. Mol Pharmacol. 2002;62(4):836-846. |