... reacts with hydrogen chloride 1, 4 - dichloro-butane. For natural and synthetic resins (particularly vinyl resins) and ... solvent, also used for making butadiene, Adiponitrile, adipic acid, hexamethylene diamine ... material, is the pharmaceutical industry main solvent.6, for synthesis of pharmaceutical raw materials, intermediates. Such as tetrahydrothiophene, 1 ...