SEARCH Articles Figures Tables CH multiplicities of a-pinene . Signals from two quaternary C atoms, three CH units, two CH2 units and three CH3 units can be seen [Publishers Imprint] [Publishers Imprint] See Also: CH multiplicities of a-pinene . Signals from two quaternary C atoms, three CH units, two CH2 units and three CH3 units can be seen CH multiplicities of a-pinene . Signals from two quaternary C atoms, three CH units, two CH2 units and three CH3 units can be seen CH multiplicities of a-pinene . Signals from two quaternary C atoms, three CH units, two CH2 units and three CH3 units can be seen