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.
Triphenylphosphine sulfide
Triphenylphosphine sulfide (IUPAC name: triphenyl-"λ"-phosphanethione) is the organophosphorus compound with the formula (CH)PS, usually written PhPS (where Ph = phenyl). It is a colourless solid, which is soluble in a variety of organic solvents.