CPC Subgroup
C09B 44/20 Thiazoles or hydrogenated thiazoles
Full Title
Azo dyes containing onium groups > containing cyclammonium groups attached to an azo group by a carbon atom of the ring system > Thiazoles or hydrogenated thiazoles
C09B 44/20 Azo dyes containing onium groups > containing cyclammonium groups attached to an azo group by a carbon atom of the ring system > Thiazoles or hydrogenated thiazoles