2-trans,6-trans-farnesyl diphosphate(3-) is an organophosphate oxoanion that is the trianion obtained by removal of the three protons from the diphosphate group of 2-trans,6-trans-farnesyl diphosphate. It has a role as a human metabolite and a Saccharomyces cerevisiae metabolite. It is a conjugate base of a 2-trans,6-trans-farnesyl diphosphate.