A methylene dihydropyridine with a high ground-state dipole moment was investigated to explore the possibility of using it to form an organic monomeric glass “electret” film. Measurements were done in a specially designed test cell. An electric field was applied to a 100-&mgr;m-thick film of dihydropyridine while cooling from a melt. The cell potential was recorded as a function of time to study the homocharge and polarization relaxations. The homocharge relaxation time was≈900 s.The polarization relaxation time was≈2×105 sin the vicinity of the glass transition temperature. The polarization is linear over a wide range of electric field strength. ©1997 American Institute of Physics.