WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 561359

CAS#: 1832713-02-6

Description: RA-839 is a noncovalent small molecule binder to Keap1 and selective activator of Nrf2 signaling. RA-839 also suppresses LPS-induced iNOS and nitric oxide expression in macrophages.

Price and Availability




RA-839 is not in stock, 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.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 561359
Name: RA-839
CAS#: 1832713-02-6
Chemical Formula: C25H28N2O4S
Exact Mass: 452.177
Molecular Weight: 452.57
Elemental Analysis: C, 66.35; H, 6.24; N, 6.19; O, 14.14; S, 7.08

Synonym: RA-839; RA 839; RA839;

IUPAC/Chemical Name: (3S)-1-[4-[[(2,3,5,6-Tetramethylphenyl)sulfonyl]amino]-1-naphthalenyl]-3-pyrrolidinecarboxylic acid


InChi Code: InChI=1S/C25H28N2O4S/c1-15-13-16(2)18(4)24(17(15)3)32(30,31)26-22-9-10-23(21-8-6-5-7-20(21)22)27-12-11-19(14-27)25(28)29/h5-10,13,19,26H,11-12,14H2,1-4H3,(H,28,29)/t19-/m0/s1

SMILES Code: O=C([C@@H]1CN(C2=C3C=CC=CC3=C(NS(=O)(C4=C(C)C(C)=CC(C)=C4C)=O)C=C2)CC1)O

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code:


1: Nasiri HR, Linge S, Ullmann D. Thermodynamic profiling of inhibitors of Nrf2:Keap1 interactions. Bioorg Med Chem Lett. 2016 Jan 15;26(2):526-529. doi: 10.1016/j.bmcl.2015.11.082. Epub 2015 Nov 23. PubMed PMID: 26653613.

2: Winkel AF, Engel CK, Margerie D, Kannt A, Szillat H, Glombik H, Kallus C, Ruf S, Güssregen S, Riedel J, Herling AW, von Knethen A, Weigert A, Brüne B, Schmoll D. Characterization of RA839, a Noncovalent Small Molecule Binder to Keap1 and Selective Activator of Nrf2 Signaling. J Biol Chem. 2015 Nov 20;290(47):28446-55. doi: 10.1074/jbc.M115.678136. Epub 2015 Oct 12. PubMed PMID: 26459563; PubMed Central PMCID: PMC4653701.