RDKit 2 1 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 0.0000 0.0000 0.0000 Cr 0 0 0 0 0 3 0 0 0 0 0 0 1 2 3 0 M END > 90362 > Chromium nitride $$$$