ShK toxin blocks voltage-dependent potassium channel (Kv1.3 channel). ShK toxin can be isolated from the whole body extract of the Caribbean sea anemone (Stichodactylu helianthus). ShK toxin competes with dendrotoxin I and α-dendrotoxin for binding to synaptosomal membranes of rat brain, facilitates acetylcholine release. ShK toxin suppresses K+ currents in cultured rat dorsal root ganglion neurons. ShK toxin also inhibits T lymphocyte proliferation.

Compound 1769-24-0 is a natural product for research related to life sciences. The catalog number is TPL0186 and the CAS number is 1769-24-0.

5,6-Dihydropyridin-2(1H)-one is a natural product from Piper longum.