butadiene,globule

styrene butadiene rubber
【预订】1,3-butadiene and crotonaldehyde
pbr1220 butadiene rubber kbr01 pbr-nd br1208 br9000
alkene and alkyne 1,3-丁二烯 1,3-butadiene 1,3,5-环己三烯 1
预订 1,3-butadiene, ethylene oxide and vinyl halides