RDKit 2 1 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 B 0 0 0 0 0 0 0 0 0 0 0 0 0.0000 0.0000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 0 M END > 66227 > Boron nitride $$$$