Isobutane (r600a) ethane (r170) propane (r290) propylene (r1270) isobutylene isopentane (r601a) n butane (r600) n pentane (r601) cyclopentane(cp) 1 hexene n hexane isooctane 1 nonene 1 octene decenedimethyl ether (dme).R&d, production, marketing, distribution services, market development