ClassID:

93192

C07C273/1818 - CPC Classification

Classification description:

Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from -N=C=O and XNR'R"

Sub-classes:
Recent Application in this class: