English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 051 C13H28 tridecane C14H10 anthracene C14H18N2O5 aspartame C14H30 tetradecane C15H32 pentadecane C16H34 hexadecane C17H36 heptadecane C18H32O2 linoleic acid