Solvent Yellow 14 (CI 12055) is used to study surface enhanced resonance Raman scattering (SERRS) from a Lee-Meisel colloidal suspension. The dye molecule is present on the surface in the hydrazone form. Three semiempirical calculations were used to assign the bands. The PM3 Hamiltonian provides the best fit between experiment and theory after correcting for anharmonicity. Solution resonance excitation profiles (REP)and surface enhanced (resonance) Raman excitation profiles (SE(R)REP) were compared. Comparison of the SE(R)REPs with the REPs indicates a shift of the principal maxima from 501 to 514 nm, suggesting an interaction with the charged Surface sufficiently strong to effect the separation of the HOMO and LUMO of the adsorbed dye. These peaks correspond to the peak in the electronic spectrum of the hydrazone form at 503 nm. The principal enhancements in the resonance spectrum were for vibrational modes with in plane displacements predominantly on the phenyl ring and bridging region.