Description
Epelsiban (GSK 557296) is a potent, selective and orally bioavailable oxytocin receptor antagonist, with a pKi of 9.9 for human oxytocin receptor.
Product information
CAS Number: 872599-83-2
Molecular Weight: 518.65
Formula: C30H38N4O4
Chemical Name: (3R,6R)-6-[(2S)-butan-2-yl]-3-(2,3-dihydro-1H-inden-2-yl)-1-[(1R)-1-(2,6-dimethylpyridin-3-yl)-2-(morpholin-4-yl)-2-oxoethyl]piperazine-2,5-dione
Smiles: C[C@@H](CC)[C@@H]1C(=O)N[C@H](C2CC3=CC=CC=C3C2)C(=O)N1[C@H](C1C=CC(C)=NC=1C)C(=O)N1CCOCC1
InChiKey: UWHCWRQFNKUYCG-QUZACWSFSA-N
InChi: InChI=1S/C30H38N4O4/c1-5-18(2)26-28(35)32-25(23-16-21-8-6-7-9-22(21)17-23)29(36)34(26)27(24-11-10-19(3)31-20(24)4)30(37)33-12-14-38-15-13-33/h6-11,18,23,25-27H,5,12-17H2,1-4H3,(H,32,35)/t18-,25+,26+,27+/m0/s1
Technical Data
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined
HS Tariff Code: 382200
How to use
In Vitro:
Epelsiban is a potent oxytocin receptor, with a pKi of 9.9 for human oxytocin receptor, >31000-fold selectivity over all three human vasopressin receptors hV1aR (pKi, <5.2), hV2R (pKi, <5.1), and hV1bR (pKi, 5.4), and shows no significant P450 inhibition.
In Vivo:
Epelsiban shows an IC50 of 192 nM for oxytocin receptor in rats. Epelsiban has low levels of intrinsic clearance against the microsomes of rat, dog, and cynomolgus monkey, good bioavailability (55%), but is negative in the genotoxicity screens with a satisfactory oral safety profile in female rats.
Products are for research use only. Not for human use.
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