What is "aryldialkylphosphatase"

n. (context enzyme English) A enzyme that hydrolyzes organophosphates: ''an aryl dialkyl phosphate + H₂O $rightleftharpoons$ dialkyl phosphate + an aryl alcohol''.

Aryldialkylphosphatase (also known as organophosphorus hydrolase, phosphotriesterase, and paraoxon hydrolase) is an enzyme that hydrolyse organophosphates:

an aryl dialkyl phosphate + HO $\rightleftharpoons$ dialkyl phosphate + an aryl alcohol

Thus, the two substrates of this enzyme are aryldialkylphosphate and HO, whereas its two products are dialkylphosphate and aryl alcohol.

Organophosphate is the general name for esters of phosphoric acid and is one of the organophosphorus compounds. They can be found as part of insecticides, herbicides, and nerve gases, amongst others. Some less-toxic organophosphates can be used as solvents, plasticizers, and EP additives.