1,10-phenanthroline, 5,6-dichloro-5,6-dihydro-, 1-oxide, (5R,6R)- InChI=1/C12H8Cl2N2O/c13-9-7-3-1-5-15-11(7)12-8(10(9)14)4-2-6-16(12)17/h1-6,9-10H/t9-,10-/m1/s rel-(5R,6R)-5,6-dichloro-5,6-dihydro-1,10-phenanthroline 1-oxide