DIFF Subgroup
C09B 43/28 by etherification of hydroxyl groups
Introduced: January 1980
Title
Titles differ between systems:
IPC: by etherification of hydroxy groups
CPC: by etherification of hydroxyl groups
Full Title
Full titles differ between systems:
IPC:
Preparation of azo dyes from other azo compounds > by etherification of hydroxy groups
CPC:
Preparation of azo dyes from other azo compounds > by etherification of hydroxyl groups
No child classifications to compare. This is a leaf node in both IPC and CPC.