  The off-shell anomalous chromomagnetic dipole moment of the standard model
quarks ($u$, $d$, $s$, $c$ and $b$), at the $Z$ gauge boson mass scale, is
computed by using the $\overline{\textrm{MS}}$ scheme. The numerical results
disagree with all the previous predictions reported in the literature and show
a discrepancy of up to two orders of magnitude in certain situations.
