Acetonitrile (75-05-8);Tetrahydrofuran (109-99-9);Propionic acid (79-09-4);Tetrachloroethylene (127-18-4);Trichloroethylene (79-01-6);N-hexane (110-54-3);N-heptane (142-82-5);Maleic anhydride (108-31-6);Deflazacort (14484-47-0);Dexamethasone (1950-22);Estriol (50-27-1)