Wave number (cm-1) Frequency Assignment Control Treated 2975 2975 CH3 stretching 1496 1506 C-H symmetrical deformation vibrations 1351-1457 1350-1457 CH2 and CH3 deformation 1273 1273 C=S stretching 1151-1195 1151-1195 C-C  skeletal vibrations 967-1062 967-1056 C-N stretching 818-914 817-914 C-S stretching 554-666 553-665 S-S stretching

Table 1: FT-IR vibrational peaks observed in Disulfiram.