1.14.13.61 1,10-phenanthroline - 62 1.14.13.61 4,5-dihydroxy-1,3-benzene disulfonic acid - 43392 1.14.13.61 EDTA - 21 1.14.13.61 iodoacetate - 93 1.14.13.61 NEM - 89 1.14.13.61 p-hydroxymercuribenzoate - 98