Tetrasodium glutamate diacetate (Glutamate diacetate tetrasodium) is a biodegradable chelating agent that can be used as a dietary ingredient, extracts polyvalent metal ions from waste activated sludge (WAS) flocs, and enhances the production of volatile fatty acids from WAS.

4-Nitroquinoline 1-oxide is a highly carcinogenic modeling compound that induces mutations in bacteria, fungi and animals by forming numerous purine adducts.

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.