Difelikefalin (CR845) chemical structure
Chemical structureResearch use only
CAT. NO. DC11380Featured

Difelikefalin (CR845)

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TotalUS$700
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Product overview

Description & Application

Difelikefalin (CR-845; FE-202845) is a peripherally restricted and selective agonist of kappa opioid receptor (KOR). Difelikefalin produces anti-inflammatory effects and has the potential in modulating pruritus in conditions such as chronic kidney disease[1][2].

ParameterValue
CAS No.1024828-77-0
SynonymsCKD-943; CR 845; FE 202845; KORSUVA; MR13A9,difelikefalin;CR845
FormulaC36H53N7O6
M.Wt679.85
SMILESO=C(C1(N)CCN(C([C@@H](CCCCN)NC([C@@H](CC(C)C)NC([C@@H](CC2=CC=CC=C2)NC([C@@H](CC3=CC=CC=C3)N)=O)=O)=O)=O)CC1)O
Purity>98%
Storage2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Biological Activity

Difelikefalin (CR-845; FE-202845) is a peripherally restricted and selective agonist of kappa opioid receptor (KOR). Difelikefalin produces anti-inflammatory effects and has the potential in modulating pruritus in conditions such as chronic kidney disease[1][2].

In Vitro

Difelikefalin (CR-845; FE-202845) does not penetrate the blood-brain barrier. Difelikefalin does not bind to mu opioid receptors or any other receptors beside KORs[1].

In Vivo

No in vivo data are provided in the current product source. Contact us for further information.

Target

kappa opioid receptor (KOR)[1]

References & source

[1]. Steven Fishbane, et al. Randomized Controlled Trial of Difelikefalin for Chronic Pruritus in Hemodialysis Patients. Kidney Int Rep. 2020 Jan 28;5(5):600-610.

[2]. Steven Fishbane, et al. A Phase 3 Trial of Difelikefalin in Hemodialysis Patients With Pruritus. N Engl J Med. 2020 Jan 16;382(3):222-232.

DC Chemicals original product information

Published experimental findings depend on the model and assay conditions. They do not guarantee equivalent performance in every application. For laboratory research use only.

Product documentation

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Handling guide

2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

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