WAVE NUMBER (cm−1)

VIBRATION

STRUCTURE

2950 - 2907

δs (CH3)

−CH3

3500 - 3338

δs (OH)

−OH

2650 - 2113

δas (CH2)

−CH2

1750 - 1722

δas (CO)

−C=O

1457 - 1400

δs (CH)

−CH3−H

1250 - 1159

Vs (CO)

−C−O−