For research use only. Not for therapeutic Use.
Aprocitentan (ACT-132577) is the major and pharmacologically active metabolite of Macitentan. Aprocitentan is dual ETA/ETB antagonist with IC50s of 3.4 nM and 987 nM, and pA2 valus of 6.7 and 5.5, respectively[1].
Aprocitentan (ACT-132577) achieves full inhibition of intracellular calcium increase induced by ET-1 on nonrecombinant cells (primary human pulmonary smooth muscle cells and rat aortic smooth muscle cell line A10 and mouse fibroblast cell line 3T3)[1].
Aprocitentan (ACT-132577) has a volume of distribution greater than the plasma volume and a longer half-life than its parent compound in the rat[1]. In rat plasma, the mean recovery of Aprocitentan (ACT-132577) ranges from 82.6% to 90.6%, matrix effect of Aprocitentan (ACT-132577) in rat plasma ranges from 101.4% to 115.2%[2].
| Catalog Number | I000425 |
| CAS Number | 1103522-45-7 |
| Synonyms | 5-(4-bromophenyl)-4-[2-(5-bromopyrimidin-2-yl)oxyethoxy]-6-(sulfamoylamino)pyrimidine |
| Molecular Formula | C16H14Br2N6O4S |
| Purity | ≥95% |
| InChI | InChI=1S/C16H14Br2N6O4S/c17-11-3-1-10(2-4-11)13-14(24-29(19,25)26)22-9-23-15(13)27-5-6-28-16-20-7-12(18)8-21-16/h1-4,7-9H,5-6H2,(H2,19,25,26)(H,22,23,24) |
| InChIKey | DKULOVKANLVDEA-UHFFFAOYSA-N |
| SMILES | C1=CC(=CC=C1C2=C(N=CN=C2OCCOC3=NC=C(C=N3)Br)NS(=O)(=O)N)Br |
| Reference | [1]. Iglarz M, et al. Pharmacology of macitentan, an orally active tissue-targeting dual endothelin receptor antagonist. J Pharmacol Exp Ther. 2008 Dec;327(3):736-45. [2]. Zhang J, et al. Pharmacokinetic study of ACT-132577 in rat plasma by ultra performance liquid chromatography-tandem mass spectrometry. Int J Clin Exp Med. 2015 Oct 15;8(10):18420-6 |
