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$18.31
Ethyl propionate is a sweet, rum-smelling ester of propionic acid and ethanol. It is less volatile and safer option for chlorinated solvents, toluene, benzene, MTBE, hexane, or even ethyl acetate. A study by Zakko and co-workers established that ethyl propionate is less toxic and more user-friendly than MTBE (Zakko, S. F., Gastroenterology, 1997, 113: 232-237).