Infо fоr Questiоns 12-16 The structure of epinephrine (аdrenаline) is shown. Imаge Description The picture depicts the structure of epinephrine. It consists of a six-membered benzene ring with three substituent groups. Attached to the bottom carbon of the ring, the 4 position, is a hydroxyl group. Attached to the lower left carbon of the ring, the 3 position, is a hydroxyl group. Attached to the top carbon of the ring, the 1 position, is CH(OH)CH2NHCH3.