Irdabisant, also known as CEP-26401, is a potent, selective histamine H3 receptor inverse agonist. High affinity of CEP-26401 for H₃R was demonstrated in radioligand binding displacement assays in rat brain membranes (K(i) = 2.7 ± 0.3 nM) and recombinant rat and human H₃R-expressing systems (K(i) = 7.2 ± 0.4 and 2.0 ± 1.0 nM, respectively). CEP-26401 displayed potent antagonist and inverse agonist activities in [³⁵S]guanosine 5'-O-(γ-thio)triphosphate binding assays. CEP-26401 may also have therapeutic utility in treating schizophrenia or as adjunctive therapy to approved antipsychotics.
MedKoo Cat#: 319749
Name: Irdabisant free base
CAS#: 1005402-19-6 (free base)
Chemical Formula: C18H23N3O2
Exact Mass: 313.1790
Molecular Weight: 313.40
Elemental Analysis: C, 68.98; H, 7.40; N, 13.41; O, 10.21
The following data is based on the product molecular weight 313.40 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 1.15 mL | 5.76 mL | 11.51 mL |
| 5 mM | 0.23 mL | 1.15 mL | 2.3 mL |
| 10 mM | 0.12 mL | 0.58 mL | 1.15 mL |
| 50 mM | 0.02 mL | 0.12 mL | 0.23 mL |
