R9028 Sigma-Aldrich


≥98% (HPLC), solid

Synonym: (S)-(+)-2-Ethoxy-4-[N-[1-(2-piperidinophenyl)-3-methyl-1-butyl]aminocarbonylmethyl]benzoic acid, Novonorm, Prandin



Related Categories Approved Therapeutics/Drug Candidates, Bioactive Small Molecule Alphabetical Index, Bioactive Small Molecules, Cell Biology, Cell Signaling and Neuroscience,
Quality Level   100
assay   ≥98% (HPLC)
form   solid
color   white
mp   129-130.2 °C
solubility   DMSO: >20 mg/mL
originator   Novo Nordisk
storage temp.   2-8°C
SMILES string   CCOc1cc(CC(=O)N[C@@H](CC(C)C)c2ccccc2N3CCCCC3)ccc1C(O)=O
InChI   1S/C27H36N2O4/c1-4-33-25-17-20(12-13-22(25)27(31)32)18-26(30)28-23(16-19(2)3)21-10-6-7-11-24(21)29-14-8-5-9-15-29/h6-7,10-13,17,19,23H,4-5,8-9,14-16,18H2,1-3H3,(H,28,30)(H,31,32)/t23-/m0/s1
Gene Information   human ... ABCC8(6833), KCNJ1(3758), KCNJ11(3767)


General description

Repaglinide belongs to the meglitinide class, which differs from the glibenclamide by having a bulky B site group instead of A site.


Repaglinide has been used as a ATP-sensitive potassium channel (KATP) inhibitor in breast cancer cell line MDA-MB-231. It has also been used in the preparation of KATP complex to study its interaction using cryo-EM structural analysis.


50, 250 mg in glass bottle

Biochem/physiol Actions

Repaglinide (RPG) due to its fast-acting effect prevents hypoglycemia. The KATP inhibition by RPG leads to depolarization in pancreatic β cells leading in voltage-gated calcium channel activation triggering insulin release. Repaglinide favors calcein passage and improves the gap junctional intercellular communication (GJIC). Structurally, RPG binds to the ABC transporter sulfonylurea receptor 1 (SUR1) in the transmembrane bundle.

Repaglinide is a potent short-acting insulin secretagogue that acts by closing ATP-sensitive potassium (KATP) channels in the plasma membrane of the pancreatic beta cell. It represents a new class of insulin secretagogues, structurally unrelated to sulphonylureas, which were developed for the treatment of type 2 diabetes.

Features and Benefits

This compound is a featured product for ADME Tox research. Click here to discover more featured ADME Tox products. Learn more about bioactive small molecules for other areas of research at

This compound was developed by Novo Nordisk. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. R9028.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


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Insulin Signaling and Energy Homeostasis

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