title: C27H31NO4
text: # C27H31NO4
  
  The molecular formula $C_{27}H_{31}NO_4$ (molar mass: 433.54 g/mol) may refer to:
  
  * Estrapronicate, a synthetic estrogen
  * N-Phenethyl-14-ethoxymetopon, a potent analgesic
  * 14-Phenylpropoxymetopon, a potent analgesic
  