DIFF Subgroup
A61K 31/055 the aromatic ring being substituted by halogen
Introduced: July 1974
Full Title
Medicinal preparations containing organic active ingredients > Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates > Phenols > the aromatic ring being substituted by halogen
No child classifications to compare. This is a leaf node in both IPC and CPC.