English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 052 C18H36O2 stearic acid C18H38 octadecane C19H40 nonadecane C20H24O2N2 quinine C20H42 eicosane C21H36N7O16P3S Coenzyme A C164H256Na2O68S2 maitotoxin Cl2O8 Chlorine octaoxide