... /drum 4.delivery :15 days 99.9%Tetrahydrofuran(THF) solvent99.9%Tetrahydrofuran(THF) solventTHF for many ... ).4, chemical intermediate products (polymerization PTMEG, natural gas odorants); chromatography solvent (gel permeation chromatography ... sultone, benzene, tin, Clofentezine, azocyclotin suspension, erythromycin ethyl succinate, acrylic urethane, tramadol hydrochloride, Quinestrol, norethindrone, ...