Words That Rhyme With "Mercaptan" :
2 syllables:
Acton, atom, batten, blacktongue, Brampton, captain, Chatham, craton, fatten, flaten, flatten, gatten, Grattan, gratton, Hampton, happen, hapten, lappen, latten, leptin, lepton, Lipton, paten, Paton, patten, Patton, platan, platen, platten, ratton, staten, stratum, tappan, Upton
3 syllables:
attractant, contactant, extractant, galactan, manhattan, mayhappen, Mountbatten, Northampton, reactance, reactant, Southampton, surfactant