| Description | TMB 8 is a non-competitive antagonist of nicotinic acetylcholine receptors (nAChRs) with IC50 values of 390 and 350 nM, respectively, for human muscle-type and α3β4 subunit-containing ganglionic nAChRs expressed in TE671/RD or SH-SY5Y cells. It inhibits nicotine-induced dopamine release from rat brain synaptosomes (IC50 = 480 nM). TMB 8 also reduces calcium availability in smooth and skeletal muscle, blocking the contractile response in isolated rabbit aortic strip when used at a concentration of 50 μM and inhibiting calcium influx and efflux in isolated guinea pig ileum when used at a concentration of 65 μM. It has been used in the study of intracellular calcium dynamics, particularly in smooth muscle. TMB 8 also inhibits protein kinase C (PKC) activity in a dose-dependent manner. |
| molecular weight | 431.99 |
| Molecular formula | C22H38ClNO5 |
| CAS | 53464-72-5 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |
| Solubility | Methanol: Slightly soluble H2O: Slightly soluble Chloroform: Slightly soluble |