2 aquacob(III)alamin + AH2 => 2 cob(II)alamin + A + 2 H2O + 2 H(+)
2 aquacob(iii)alamin + ah2 => 2 cob(ii)alamin + a + 2 h2o + 2 h(+)
2 aquacob(III)alamin + AH2 => 2 cob(II)alamin + A + 2 H2O + 2 H(+)
2 aquacob(iii)alamin + ah2 => 2 cob(ii)alamin + a + 2 h2o + 2 h(+)