G0639 Sigma-Aldrich


≥99% (HPLC)

Synonym: 5-Chloro-N-[4-(cyclohexylureidosulfonyl)phenethyl]-2-methoxybenzamide, Glyburide, N-p-[2-(5-Chloro-2-methoxybenzamido)ethyl]benzenesulfonyl-N′-cyclohexylurea



Related Categories Approved Therapeutics/Drug Candidates, Bioactive Small Molecule Alphabetical Index, Bioactive Small Molecules, Cell Biology, Cell Signaling and Neuroscience,
assay   ≥99% (HPLC)
solubility   ethanol: 2 mg/mL
  DMSO: soluble
  H2O: insoluble
originator   Roche
storage temp.   2-8°C
SMILES string   COc1ccc(Cl)cc1C(=O)NCCc2ccc(cc2)S(=O)(=O)NC(=O)NC3CCCCC3
InChI   1S/C23H28ClN3O5S/c1-32-21-12-9-17(24)15-20(21)22(28)25-14-13-16-7-10-19(11-8-16)33(30,31)27-23(29)26-18-5-3-2-4-6-18/h7-12,15,18H,2-6,13-14H2,1H3,(H,25,28)(H2,26,27,29)
Gene Information   human ... ABCC8(6833), KCNH2(3757), KCNJ1(3758), KCNJ11(3767)
rat ... Kcnj1(24521)



Glybenclamide has been used:
• as a positive control oral hypoglycemic drug to study the hypoglycemic effects of Chlorella in streptozotocin-induced diabetic mice
• as a K+ATP channel antagonist in canine with induced acute hypoxia
• as an inhibitor of cystic fibrosis transmembrane conductance regulator (CFTR) channel in fetal distal lung epithelial (FDLE) cells


5, 10 g in poly bottle

Biochem/physiol Actions

Glybenclamide is a sulfonylurea class of antidiabetic drug used in the treatment of type 2 diabetes mellitus. It has benzamide moiety and stimulates pancreatic β cells to produce insulin resulting in a hypoglycemic effect. It selectively blocks ATP-sensitive K+ channels in the brain with high-affinity binding sites and elicits cardiovascular effects. It may be a potential therapeutic for thromboembolic disorders due to its in vivo antiplatelet functionality. Glybenclamide traverses to the ischemic brain and provides neuroprotection especially during the early stages of stroke.

Selectively blocks ATP-sensitive K+ channels; high affinity binding sites found in brain, pancreatic β cells, and cardiovascular system.

Features and Benefits

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This compound is featured on the Chloride Channels and Potassium Channels pages of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

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

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC

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


Certificate of Analysis (COA)

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Certificate of Origin (COO)

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