Organophosphate
Organophosphates (also known as phosphate esters) are a class of organophosphorus compounds with the general structure O=P(OR). They can be considered as esters of phosphoric acid. Like most functional groups organophosphates occur in a diverse range of forms, with important examples including key biomolecules such as DNA, RNA and ATP, as well as many insecticides, herbicides, and nerve agents.
Organophosphorus compound
Phosphonates are esters of phosphonic acid and have the general formula RP(=O)(OR'). Phosphonates have many technical applications, a well-known member being glyphosate, better known as Roundup. With the formula (HO)P(O)CHNHCHCOH, this derivative of glycine is one of the most widely used herbicides. Bisphosphonates are a class of drugs to treat osteoporosis. The nerve gas agent sarin, containing both C–P and F–P bonds, is a phosphonate.