1024828-77-0
Chemical Structure
Difelikefalin
Synonym(s): CR-845; FE-202845
- CAS No.: 1024828-77-0
- Formula:C36H53N7O6
- Molecular Weight:679.85
IUPAC Name: 1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic acid
InChIKey: FWMNVWWHGCHHJJ-SKKKGAJSSA-N
SMILES: O=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
Biological Activity: Difelikefalin (CR-845; FE-202845) is an orally active peripherally acting kappa opioid receptor agonist. Difelikefalin reduces acute kidney injury, decreases oliguria, maintains urine flow, inhibits cytokine expression, and improves survival in endotoxemia after ischemia/reperfusion. Difelikefalin suppresses pruritus signals and exhibits neuromodulatory antipruritic activity. Difelikefalin can be used in research related to acute kidney injury, chronic kidney disease-associated pruritus, and atopic dermatitis[1][2][3].
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Difelikefalin | 99.98% | Difelikefalin (CR-845; FE-202845) is an orally active peripherally acting kappa opioid receptor agonist. Difelikefalin reduces acute kidney injury, decreases oliguria, maintains urine flow, inhibits cytokine expression, and improves survival in endotoxemia after ischemia/reperfusion. Difelikefalin suppresses pruritus signals and exhibits neuromodulatory antipruritic activity. Difelikefalin can be used in research related to acute kidney injury, chronic kidney disease-associated pruritus, and atopic dermatitis. | ||||||||||||||||||||
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Difelikefalin-d5 | Difelikefalin-d5 (CR-845-d5; FE-202845-d5) is the deuterated-labeled Difelikefalin (HY-17609). Difelikefalin (CR-845; FE-202845) is an orally active peripherally acting kappa opioid receptor agonist. Difelikefalin reduces acute kidney injury, decreases oliguria, maintains urine flow, inhibits cytokine expression, and improves survival in endotoxemia after ischemia/reperfusion. Difelikefalin suppresses pruritus signals and exhibits neuromodulatory antipruritic activity. Difelikefalin can be used in research related to acute kidney injury, chronic kidney disease-associated pruritus, and atopic dermatitis. | |||||||||||||||||||||
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Difelikefalin-d5 hydrochloride | 97.58% | Difelikefalin-d5 hydrochloride (CR-845-d5 hydrochloride; FE-202845-d5 hydrochloride) is the deuterated-labeled Difelikefalin (HY-17609). Difelikefalin (CR-845; FE-202845) is an orally active peripherally acting kappa opioid receptor agonist. Difelikefalin reduces acute kidney injury, decreases oliguria, maintains urine flow, inhibits cytokine expression, and improves survival in endotoxemia after ischemia/reperfusion. Difelikefalin suppresses pruritus signals and exhibits neuromodulatory antipruritic activity. Difelikefalin can be used in research related to acute kidney injury, chronic kidney disease-associated pruritus, and atopic dermatitis. | ||||||||||||||||||||
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- [1]. Sawanobori Y, et al. A kappa opioid receptor agonist, difelikefalin, improves acute kidney injury in experimental sepsis models. PloS one. 2026;21(4):e0343693. [Content Brief]
- [2]. Viscusi ER, et al. Effect of difelikefalin, a selective kappa opioid receptor agonist, on respiratory depression: A randomized, double-blind, placebo-controlled trial. Clinical and translational science. 2021 Sep;14(5):1886-1893. [Content Brief]
- [3]. Tamari M, et al. Difelikefalin suppresses itch and reduces scratching independent of inflammation in a murine model of atopic dermatitis. The Journal of allergy and clinical immunology. 2023 Oct;152(4):927-932. [Content Brief]
