title: C21H26O2
text: # C21H26O2
  
  The molecular formula $C_{21}H_{26}O_2$ (molar mass : 310.42 g/mol, exact mass : 310.19328) may refer to:
  
  * Altrenogest
  * Cannabinol
  * Cannabinodiol
  * Gestodene, a progesterone contraceptive hormone
  * Mestranol
  * Plomestane
  