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Epelsiban

CAS No.
872599-83-2
Chemical Name:
Epelsiban
Synonyms
Epelsiban;GSK 557296;(3R,6R)-6-((S)-sec-butyl)-3-(2,3-dihydro-1H-inden-2-yl)-1-((R)-1-(2,6-dimethylpyridin-3-yl)-2-morpholino-2-oxoethyl)piperazine-2,5-dione;(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;2,5-Piperazinedione, 3-(2,3-dihydro-1H-inden-2-yl)-1-[(1R)-1-(2,6-dimethyl-3-pyridinyl)-2-(4-morpholinyl)-2-oxoethyl]-6-[(1S)-1-methylpropyl]-, (3R,6R)-
CBNumber:
CB63126529
Molecular Formula:
C30H38N4O4
Molecular Weight:
518.65
MDL Number:
MFCD26961099
MOL File:
872599-83-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-11 19:39:08

Epelsiban Properties

Boiling point 790.6±60.0 °C(Predicted)
Density 1.214±0.06 g/cm3(Predicted)
storage temp. Store at -20°C
solubility Soluble in DMSO
pka 13.16±0.60(Predicted)
FDA UNII T2EZ19HX73

Epelsiban price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth XJB59983 Epelsiban 872599-83-2 5mg $1670.55 2026-06-05 Buy
Biosynth XJB59983 Epelsiban 872599-83-2 10mg $2672.8 2026-06-05 Buy
Biosynth XJB59983 Epelsiban 872599-83-2 25mg $5011.5 2026-06-05 Buy
Biosynth XJB59983 Epelsiban 872599-83-2 50mg $8018.5 2026-06-05 Buy
Product number Packaging Price Buy
XJB59983 5mg $1670.55 Buy
XJB59983 10mg $2672.8 Buy
XJB59983 25mg $5011.5 Buy
XJB59983 50mg $8018.5 Buy

Epelsiban Chemical Properties, Uses, Production

Uses

Epelsiban (GSK 557296) is a potent, selective and orally bioavailable oxytocin receptor antagonist, with a pKi of 9.9 for human oxytocin receptor.

Definition

ChEBI: Epelsiban is a dipeptide.

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[1].

References

[1] Borthwick AD, et al. Pyridyl-2,5-diketopiperazines as potent, selective, and orally bioavailable oxytocin antagonists: synthesis, pharmacokinetics, and in vivo potency. J Med Chem. 2012 Jan 26;55(2):783-96. DOI:10.1021/jm201287w

Epelsiban Preparation Products And Raw materials

Raw materials

Preparation Products

Epelsiban Suppliers

Global Suppliers ( 10)
Supplier Tel Email Country ProdList Advantage
Fan De(Beijing) Biotechnology Co., Ltd. 15911056312 liming@bio-fount.com China 9718 58
Shanghai zhigan biotechnology co., LTD zhiqianbio@126.com China 19765 58
BOC Sciences 16314854226; +8616314854226 inquiry@bocsci.com United States 19852 58
TargetMol Chemicals Inc. +1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
TargetMol Chemicals Inc. 15002134094 marketing@targetmol.cn China 29874 58
Shandong Ziyi Pharmaceutical Co., Ltd. 17860786593 1181917242@qq.com China 9999 58
TargetMol Chemicals Inc. 13564774135 marketing@targetmol.com United States 19950 58
TargetMol Chemicals Inc. +1-781-999-5354; support@targetmol.com United States 38999 58

View Latest Price from Epelsiban manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Epelsiban pictures 2026-05-11 Epelsiban
872599-83-2
$2120.00-3700.00 10g TargetMol Chemicals Inc.
Epelsiban pictures 2025-07-18 Epelsiban
872599-83-2
$2120.00-3700.00 10g TargetMol Chemicals Inc.
  • Epelsiban pictures
  • Epelsiban
    872599-83-2
  • $2120.00-3700.00
  • TargetMol Chemicals Inc.
  • Epelsiban pictures
  • Epelsiban
    872599-83-2
  • $2120.00-3700.00
  • TargetMol Chemicals Inc.
Epelsiban (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 GSK 557296 2,5-Piperazinedione, 3-(2,3-dihydro-1H-inden-2-yl)-1-[(1R)-1-(2,6-dimethyl-3-pyridinyl)-2-(4-morpholinyl)-2-oxoethyl]-6-[(1S)-1-methylpropyl]-, (3R,6R)- (3R,6R)-6-((S)-sec-butyl)-3-(2,3-dihydro-1H-inden-2-yl)-1-((R)-1-(2,6-dimethylpyridin-3-yl)-2-morpholino-2-oxoethyl)piperazine-2,5-dione 872599-83-2