H 56 28
\ˈe͡ɪt͡ʃ fˈɪftisˈɪks twˈɛntiˈe͡ɪt], \ˈeɪtʃ fˈɪftisˈɪks twˈɛntiˈeɪt], \ˈeɪ_tʃ f_ˈɪ_f_t_i_s_ˈɪ_k_s t_w_ˈɛ_n_t_i__ˈeɪ_t]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.