Parathion is an organophosphate pesticide. At room temperature, it is a combustible pale yellow to dark brown liquid that may be difficult to ignite. In commercial products, parathion is usually dissolved in hydrocarbon solvents such as toluene or xylene, which are flammable.

It is a single linear strand of nucleic acid sequence. They do not have hydrogen bonds, and are thus less stiff and also less stable. The ssDNA is found abundantly in viruses of extreme conditions and marine environments.

Tetrodotoxin is a potent neurotoxin. Its name derives from Tetraodontiformes, an order that includes pufferfish, porcupinefish, ocean sunfish or mola, and triggerfish, several species that carry the toxin. Although tetrodotoxin was discovered in these fish and found in several other animals (e.g., blue-ringed octopus, rough-skinned newt, and Naticidae) it is actually produced by certain symbiotic […]

Puromycin is an antibiotic protein synthesis inhibitor which causes premature chain termination during translation.

G418 is an aminoglycoside antibiotic similar in structure to gentamicin B1. It is produced by Micromonospora rhodorangea. G418 blocks polypeptide synthesis by inhibiting the elongation step in both prokaryotic and eukaryotic cells.