Aside from the lignocellulose, wood consists of a variety of low molecular weight organic compounds, called extractives. The wood extractives are fatty acids, resin acids, waxes and terpenes. For example, rosin is exuded by conifers as protection from insects. The extraction of these organic materials from wood provides tall oil, turpentine, and rosin.
What's the name for the low molecular weight organic compounds in wood? Along with fatty acids, what kind of acids are in the extractives in wood? Wood extractives include resin and fatty acids, terpenes, and what other component? What do conifers use rosin to protect themselves from? Along with tall oil and rosin, what commercial product do we get from wood's extractives?