An ectoparasiticide is an antiparasitic drug used in the treatment of ectoparasitic infestations.
In chemistry, an ester is a chemical compound derived from an acid (organic or inorganic) in which at least one –OH (hydroxyl) group is replaced by an –O–alkyl (alkoxy) group.
An insect repellent (also commonly called "bug spray") is a substance applied to skin, clothing, or other surfaces which discourages insects (and arthropods in general) from landing or climbing on that surface.
In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a measure of the lethal dose of a toxin, radiation, or pathogen.
A methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms — CH3.
In chemistry, an organic compound is generally any chemical compound that contains carbon.
Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2.