The cathodic electrochemical determination of molnupiravir on carbon nitride nanoparticles has been investigated for the first time. The electrochemical determination is given in neutral and mildly acidic media, and C3N4 plays the role of proton and electron transfer mediator. The analysis of the correspondent model confirms that the electrochemical determination of molnupiravir may be efficiently given with the easy interpretation of the analytical signal. As for the oscillatory behavior, its probability is more expressed than in the similar systems