OSMIUM ION non-polymer HETAI Os 3 1999-07-08 2011-06-04 N REL 190.230 OS N N RCSB OS OS 3 0 N N N 0.000 0.000 0.000 0.000 0.000 0.000 OS OS 1 [Os+3] [Os+3] [Os+3] [Os+3] [Os+3] InChI=1S/Os/q+3 XQBKHDFIPARBOX-UHFFFAOYSA-N osmium(3+) osmium(+3) cation RCSB RCSB