DIFF Subgroup
C09B 1/38 Urea and thiourea derivatives
Introduced: September 1968
Title
Titles differ between systems:
IPC: Urea or thiourea derivatives
CPC: Urea and thiourea derivatives
Full Title
Full titles differ between systems:
IPC:
Dyes with an anthracene nucleus not condensed with any other ring > Amino anthraquinones > Preparation from starting materials already containing the anthracene nucleus > Dyes with acylated amino groups > Urea or thiourea derivatives
CPC:
Dyes with anthracene nucleus not condensed with any other ring > Amino-anthraquinones > Preparation from starting materials already containing the anthracene nucleus > Dyes with acylated amino groups > Urea and thiourea derivatives
No child classifications to compare. This is a leaf node in both IPC and CPC.