GLPBio

Iberiotoxin

Catalog No.: GC16254Purity:>98%
COASDSData Sheet

blocker of the big conductance Ca2+-activated K+ channel

Products are for research use only. Not for human use. We do not sell to patients.

Iberiotoxin
Cas No.: 129203-60-7
100µgIn Stock
$417.00
1
Tel: (909) 407-4943 / (909) 689-7124Email: sales@glpbio.com

Citations

No citations are currently available for this product. Below are selected publications citing GlpBio products.
  • Nature cover
    Nature
    641, 529–536 (2025)
  • Nature cover
    Nature
    628, 630–638 (2024)
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    Nature
    632, 686–694 (2024)
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    Nature
    618, 1017–1023 (2023)
  • Nature cover
    Nature
    610, 366–372 (2022)
  • Cell cover
    Cell
    187(9):2288-2304 (2024)
  • Cell cover
    Cell
    183(7):1867-1883 (2020)
  • Science cover
    Science
    388(6745) (2025)
  • Science cover
    Science
    387(6739) (2025)
  • Science cover
    Science
    387(6734) (2025)
  • Cell Research cover
    Cell Research
    35, 97–116 (2025)
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    Cell Research
    34, 683–706 (2024)
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    Cell Research
    33, 273–287 (2023)
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    Cell Research
    33, 546–561 (2023)
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    Cell Research
    33, 904–922 (2023)
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    Cell Research
    31, 1291–1307 (2021)

Protocol

Cell experiment [1,2]:

Cell lines

Rat dorsal root ganglion neurons, bladder

Preparation method

Soluble to 0.70 mg/ml in sterile water. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.

Reacting condition

10-100 nM

Applications

Iberiotoxin (IbTX) (10-100 nM) increased the myogenic activity of bladder, but not portal vein. IbTX caused a sustained contracture of aorta. In rat dorsal root ganglion neurons, IbTx (100 nM) reduced whole-cell outward currents in 67% of small and medium size neurons. IbTx significantly prolonged the duration of action potential and increased firing frequency of afferent neurons.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

[1]. Suarez-Kurtz, G. U. I. L. H. E. R. M. E., Garcia, M. L., & Kaczorowski, G. J. (1991). Effects of charybdotoxin and iberiotoxin on the spontaneous motility and tonus of different guinea pig smooth muscle tissues. Journal of Pharmacology and Experimental Therapeutics, 259(1), 439-443.

[2]. Zhang, X. F., Gopalakrishnan, M., & Shieh, C. C. (2003). Modulation of action potential firing by iberiotoxin and NS1619 in rat dorsal root ganglion neurons. Neuroscience, 122(4), 1003-1011.

Chemical Properties

CAS No.
129203-60-7
SMILES
CC(CC1/C(O)=N/C(/C(O)=N/C/C(O)=N/C(/C(O)=N/C(/C(O)=N/C(/C(O)=N/C/C(O)=N/C(/C(O)=N/C(/C(O)=N/C(/C(O)=N/C/C(O)=N\C(/C(O)=N/C(/C(O)=N/C(/C(O)=N/C(/C(O)=N\2)CCCNC(N)=N)CSSCC2/C(O)=N/C(/C(O)=N/C(C(O)=O)CCC(O)=N)CC3=CC=C(O)C=C3)CCCCN)CCCCN)CCSC)CSSCC(/N=C(O)/C(
Molecular Formula
C179H274N50O55S7
Molecular Weight
4230.85
Solubility
H2O : ≥ 0.7 mg/mL (0.17 mM)
Storage
Desiccate at -20°C
General tips
Select a suitable solvent according to the product solubility data. Once prepared, aliquot the stock solution to avoid repeated freeze-thaw cycles.
Use stock solutions within 6 months when stored at -80°C or within 1 month when stored at -20°C.
To improve solubility, warm the tube to 37°C and sonicate it for an appropriate period.
Shipping Condition
Evaluation samples are shipped with blue ice. Other available sizes are shipped at room temperature or with blue ice upon request.

CalculatorsMolarity / Dilution / Molecular Weight / Unit Conversion / In Vivo Formulation / Solubility

g/mol

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