CFTR Inhibitor II(GlyH101)

Catalog No. size PriceQuantity
M6419-2 2mg solid $111
M6419-10 10mg solid $441


CFTR Inhibitor II is a CFTR inhibitor (cystic fibrosis transmembrane conductance regulator). CFTR Inhibitor II is a glycine hydrazide that has been shown to block CFTR channels. CFTR Inhibitor II blocked I(Cl.PKA) in a concentration- and voltage-dependent fashion (IC(50) at +100 mV=0.3 ± 1.5 μM and at -100 mV=5.1 ± 1.3 μM). CFTR Inhibitor II blocks the open pore of cardiac CFTR channels at an electrical distance of 0.15 ± 0.03 from the external membrane surface.

Product information

CAS Number: 328541-79-3

Molecular Weight: 493.15

Formula: C19H15Br2N3O3



GlyH 101


Chemical Name:  (E)-N'-(3,5-dibromo-2,4-dihydroxybenzylidene)-2-(naphthalen-2-ylamino)acetohydrazide

Smiles: OC1=C(/C=N/NC(=O)CNC2=CC=C3C=CC=CC3=C2)C=C(Br)C(O)=C1Br


InChi: InChI=1S/C19H15Br2N3O3/c20-15-8-13(18(26)17(21)19(15)27)9-23-24-16(25)10-22-14-6-5-11-3-1-2-4-12(11)7-14/h1-9,22,26-27H,10H2,(H,24,25)/b23-9+

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO, not in water

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

CFTR Inhibitor II reversibly inhibits CFTR Cl- conductance in <1 min. In rabbit isolated ventricular myocytes, CFTR Inhibitor II also blocks cardiac I(Cl.PKA) channels. In transfected FRT (SLC26A9-FRT) cells, CFTR Inhibitor II inhibits SLC26A9-mediated Cl- currents.

In Vivo:

In mice, Topical CFTR Inhibitor II (10 μM) in mice rapidly and reversibly inhibits forskolin-induced hyperpolarization in nasal potential differences. In a cholera model, intraluminal CFTR Inhibitor II (2.5 μg) reduces cholera toxin-induced intestinal fluid secretion by approximately 80%.


  1. Melis N, Tauc M, Cougnon M, Bendahhou S, Giuliano S, Rubera I, Duranton C. Revisiting CFTR inhibition: a comparative study of CFTRinh -172 and GlyH-101 inhibitors. Br J Pharmacol. 2014 Aug;171(15):3716-27. doi: 10.1111/bph.12726. PubMed PMID: 24758416; PubMed Central PMCID: PMC4128068.
  2. Norimatsu Y, Ivetac A, Alexander C, O'Donnell N, Frye L, Sansom MS, Dawson DC. Locating a plausible binding site for an open-channel blocker, GlyH-101, in the pore of the cystic fibrosis transmembrane conductance regulator. Mol Pharmacol. 2012 Dec;82(6):1042-55. doi: 10.1124/mol.112.080267. Epub 2012 Aug 24. PubMed PMID: 22923500; PubMed Central PMCID: PMC3502623.
  3. Sheppard DN. CFTR channel pharmacology: insight from a flock of clones. Focus on "Divergent CFTR orthologs respond differently to the channel inhibitors CFTRinh-172, glibenclamide, and GlyH-101". Am J Physiol Cell Physiol. 2012 Jan 1;302(1):C24-6. doi: 10.1152/ajpcell.00376.2011. Epub 2011 Oct 12. PubMed PMID: 21998142.
  4. Stahl M, Stahl K, Brubacher MB, Forrest JN Jr. Divergent CFTR orthologs respond differently to the channel inhibitors CFTRinh-172, glibenclamide, and GlyH-101. Am J Physiol Cell Physiol. 2012 Jan 1;302(1):C67-76. doi: 10.1152/ajpcell.00225.2011. Epub 2011 Sep 21. PubMed PMID: 21940661; PubMed Central PMCID: PMC3328903.
  5. Barman PP, Choisy SC, Gadeberg HC, Hancox JC, James AF. Cardiac ion channel current modulation by the CFTR inhibitor GlyH-101. Biochem Biophys Res Commun. 2011 Apr 29;408(1):12-7. doi: 10.1016/j.bbrc.2011.03.089. Epub 2011 Mar 31. PubMed PMID: 21439936.

Products are for research use only. Not for human use.

Payment & Security

PayPal Venmo

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Estimate shipping

You may also like

Recently viewed