(2Z,6Z)-farnesyl diphosphate = germacrene C + diphosphate
(2z,6z)-farnesyl diphosphate = germacrene c + diphosphate
(2Z,6Z)-farnesyl diphosphate = germacrene C + diphosphate
(2z,6z)-farnesyl diphosphate = germacrene c + diphosphate