Here's what rhymes with butyldimethyl.
                        
                        
                    
                                methyl  dimethyl  Words that almost rhyme with butyldimethyl
mesial  nestle  level  vessel  devil  bevel  revel  wrestle  pestle  sessile  bezel  special  multilevel  trestle  bedevil  primaeval  embezzle  dishevel  especial  traversal  cockleshell  metal  medal  meddle  mettle  nettle  mental  settle  rebel  peril  kettle  pedal  pebble  betel  faecal  feral  kennel  petal  beryl  fennel  peddle  cecal  fettle  mescal  shekel  heckle  several  careful  temple  gentle  dental  pencil  sterile  rental  tensile  healthful  rectal  septal  acetyl  treble  bestial  festal  imperil  semble  venial  lentil  speckle  unsettle  bipedal  freckle  treadle  vestal  central  essential  potential  helpful  dreadful  parental  assemble  departmental  tremble  ventral  regimental  tangential  restful  vengeful  erectile  fretful  judgmental  prayerful  torrential  dialectal  dissemble  resettle  judgemental  teakettle  unhealthful  gunmetal  nonmetal  pretzel  zestful  headstall  chestful  fundamental  differential  celestial  epithelial  resemble  spectral  ancestral  elemental  ornamental  oriental  placental  projectile  referential  eventful  inferential  prudential  deferential  exemple  palpebral  penitential  pubertal  reverential  sentential  tocopherol  unhelpful  inessential  prehensile  reassemble  regretful  utensil  shovelful  governmental  influential  continental  residential  detrimental  endothelial  exponential  incidental  preferential  respectful  sentimental  sequential  orchestral  stressful  supplemental  forgetful  resentful  temperamental  uneventful  evidential  neglectful  revengeful  credential  nonessential  unessential  compartmental  disassemble  overcareful  successful  developmental  accidental  instrumental  presidential  confidential  incremental  monumental  circumferential  colorectal  providential  occidental  distressful  interdepartmental  nonjudgmental  unsentimental  suspenseful  quadrupedal  nondepartmental  environmental  experimental  unsuccessful  existential  transcendental  experiential  coincidental  consequential  disrespectful  quintessential  intercontinental  excremental  subcontinental  intergovernmental  nongovernmental  transcontinental  nonresidential  inconsequential