NMR Database of Lignin and Cell Wall Model Compounds.

Removed empty loops for database compliance

Brought up to date with latest Dictionary

Set Assembly.Name to match Chem_comp.name

Set Raw_data_flag to no, since there are no raw data

Added PubChem SID 111678088 to database loop

Adding molecule category to chem_comp Details

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