Database resources of the National Center for Biotechnology Information.

Removed empty loops for database compliance

Corrected C Atom_group in chem shift reference

Updated chem comp Paramagnetic and Aromatic

Brought up to date with latest Dictionary

Set Assembly.Name to match Chem_comp.name

Updating transitions; fixed peak description

Fixed potential erros in assigned chemical shifts

Set all _Chem_comp_SMILES Types to lower case

Remediated Experiment_file loop if present and standardized mol and png file tags.

InChI numbering updated according to ALATIS