2-(3,4-Dichlorophenoxy)ethyl diethylamine, commonly known as yield-increasing amine (DCPTA), was first discovered by American chemical researchers in 1977. It is a high-performance plant growth regulator that has shown significant yield-increasing effects on many agricultural crops and can improve fertilizer utilization and increase crop stress resistance.
A rubberlike hydrocarbon, almost identical with cis-polyisoprene, obtained from a shrub
that is a member of the Compositae family. It is grown extensively in Mexico and the southwestern
U.S. It contains approximately 15% rubber hydrocarbon in the form of
