ClassID:

94135

C07D209/84 - CPC Classification

Classification description:

Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom; Ring systems containing three or more rings [b, c]- or [b, d]-condensed; Carbazoles; Hydrogenated carbazoles Separation, e.g. from tar; Purification

Recent Application in this class: