C09B44/12 - CPC Classification Index

ClassID:

102309 ⎘

C09B44/12 - CPC Classification

Classification description:

Azo dyes containing onium groups containing cyclammonium groups attached to an azo group by a carbon atom of the ring system having one nitrogen atom as the only ring hetero atom

Sub-classes:

C09B44/123 » {in a five-membered ring, e.g. pyrrolium, indolium} 0
C09B44/126 » {in a six-membered ring, e.g. pyrridinium, quinolinium} 13