Belnacasan (VX-765) - Moligand™, 10mM in DMSO , CAS No.273404-37-8

CAS: 273404-37-8 Cat. No.: B408135 Molecular Weight: 508.99 EC Number: 695-154-4

GRADE & PURITY Moligand™, 10mM in DMSO

Synonyms

(S)-1-((S)-2-(4-amino-3-chlorobenzamido)-3,3-dimethylbutanoyl)-N-((2R,3S)-2-ethoxy-5-oxo-tetrahydrofuran-3-yl)pyrrolidine-2-carboxamide

Storage

Store at -80°C

Shipped In

Dry ice packs + Cold packs

Overview

Information

Belnacasan (VX-765) is a potent and selective inhibitor ofcaspase-1withKiof 0.8 nM in a cell-free assay. Phase 2.
In vitro

VX-765 is an orally absorbed prodrug of VRT-043198, which exhibits potent inhibition against ICE/caspase-1 and caspase-4 with Ki of 0.8 nM and less than 0.6 nM, respectively. And VRT-043198 also inhibits IL-1β release from both PBMCs and whole blood with IC50 of 0.67 μM and 1.9 μM, respectively.

In vivo

In collagen-induced arthritis mouse model, VX-765 (200 mg/kg) inhibits LPS-induced IL-1β production by about 60%, and results in a dose-dependent, statistically significant reduction in the inflammation scores and effective protection from joint changes. In vivo, VX-765 blocks kindling epileptogenesis in rats by preventing IL-1β increase in forebrain astrocytes without significant effect on afterdischarge duration. In the mouse model of acute seizures, VX-765 (50 mg/kg-200 mg/kg) produces the anticonvulsant effect by delaying the time to onset of the first seizure and decreasing the number of seizures as well as their total duration by average 50% and 64%. In adult rats with genetic absence epilepsy (GAERS), VX-765, after the 3rd drug injection, significantly reduces the cumulative duration and number of spike-and-wave discharges (SWDs) by 55% on average by selectively blocking IL-1β biosynthesis.
Cell Data

cell lines：

Concentrations：

Incubation Time：

Powder Purity:≥97%

Specifications

Synonyms

(S)-1-((S)-2-(4-amino-3-chlorobenzamido)-3, 3-dimethylbutanoyl)-N-((2R, 3S)-2-ethoxy-5-oxo-tetrahydrofuran-3-yl)pyrrolidine-2-carboxamide

Specifications & Purity

Moligand™, 10mM in DMSO

Biochemical and Physiological Mechanisms

Belnacasan (VX-765) is a potent and selective inhibitor of caspase-1 with K_i of 0.8 nM in a cell-free assay. Phase 2.

Storage

Store at -80°C

Shipped In

Dry ice packs + Cold packs

This product requires cold chain shipping. Ground and other economy services are not available.

Grade

Moligand™

Product Properties

• ALogP: 2.3

Names and Identifiers

• Isomeric SMILES: CCO[C@H]1[C@H](CC(=O)O1)NC(=O)[C@@H]2CCCN2C(=O)[C@H](C(C)(C)C)NC(=O)C3=CC(=C(C=C3)N)Cl
• Alternate CAS: 851091-96-8,273404-37-8
• MeSH Entry Terms: (S)-1-((S)-2-1((-(4-amino-3-chloro-phenyl)-methanoyl)-amino)-3,3-dimethyl-butanoyl)-pyrrolidine-2-carboxylic acid ((2R,3S)-2-ethoxy-5-oxo-tetrahydro-furan-3-yl)-amide;(S)-3-((1-((S)-1-((S)-2-((1-(4-amino-3-chlorophenyl)methanoyl)amino)-3,3-dimethyl-butano
• Molecular Weight: 508.99
• Reaxy-Rn: 13938176
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=13938176&ln=

Chemical and Physical Properties

• Solubility: Solubility (25°C) In vitro Water: 9 mg/mL (65.16 mM); DMSO: 7 mg/mL (50.68 mM); Ethanol: Insoluble
• Melt Point(°C): 99℃

References

1. Chen Yuxing, Tao Yong, Huang Qiu, Xu Jingtao, Wang Zhenxin, Zhang Ye, Fu Guangxu, Tan Fuqiang, Feng Keyi, Ou Yunsheng.  (2025)  Hino-Fe Chelate Suppresses Osteosarcoma Progression through Dual Induction of Ferroptosis and NLRC4-mediated Pyroptosis: Mechanisms and Therapeutic Implications.  International Journal of Biological Sciences,  21  (11): (4872-4894).  [PMID:40860199] [10.7150/ijbs.113785]

2. Yao Li, Jie Wang, Yaru Li, Jiajia Luo, Fang Liu, Tiantian Chen, Yuting Ji, Hong Yang, Zheng Wang, Yanjun Zhao.  (2023)  Attenuating Uncontrolled Inflammation by Radical Trapping Chiral Polymer Micelles.  ACS Nano,      [PMID:37352508] [10.1021/acsnano.2c12356]