WARNING: This product is for research use only, not for human or veterinary use.
MedKoo CAT#: 206435
CAS#: 1024828-77-0 (free base)
Description: Difelikefalin, also known CR-845; MR-13A-9; MR-13A9, is a novel and potent kappa opioid receptor agonist. CR845 exhibit low P450 CYP inhibition and low penetration into the brain. CR845 may be useful in the prophylaxis and treatment of pain and inflammation associated with a variety of diseases and conditions.
MedKoo Cat#: 206435
Name: Difelikefalin
CAS#: 1024828-77-0 (free base)
Chemical Formula: C36H53N7O6
Exact Mass: 679.40573
Molecular Weight: 679.86
Elemental Analysis: C, 63.60; H, 7.86; N, 14.42; O, 14.12
Difelikefalin is not in stock, but may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.
Related CAS #: 1024829-44-4 (acetate) 1024828-77-0 (free base)
Synonym: CR845; CR-845; CR 845; MR-13A-9; MR-13A9; Difelikefalin
IUPAC/Chemical Name: 1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic acid
InChi Key: FWMNVWWHGCHHJJ-SKKKGAJSSA-N
InChi Code: InChI=1S/C36H53N7O6/c1-24(2)21-29(32(45)40-28(15-9-10-18-37)34(47)43-19-16-36(39,17-20-43)35(48)49)42-33(46)30(23-26-13-7-4-8-14-26)41-31(44)27(38)22-25-11-5-3-6-12-25/h3-8,11-14,24,27-30H,9-10,15-23,37-39H2,1-2H3,(H,40,45)(H,41,44)(H,42,46)(H,48,49)/t27-,28-,29-,30-/m1/s1
SMILES Code: 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
The following data is based on the product molecular weight 679.86 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
---|---|---|---|
1 mM | 1.15 mL | 5.76 mL | 11.51 mL |
5 mM | 0.23 mL | 1.15 mL | 2.3 mL |
10 mM | 0.12 mL | 0.58 mL | 1.15 mL |
50 mM | 0.02 mL | 0.12 mL | 0.23 mL |
1: Cowan A, Kehner GB, Inan S. Targeting Itch with Ligands Selective for κ Opioid
Receptors. Handb Exp Pharmacol. 2015;226:291-314. doi:
10.1007/978-3-662-44605-8_16. Review. PubMed PMID: 25861786.
(Last update: 4/21/2016).