Catalog-profile is a term mostly associated with Plant maintenance as said before usually consists of Catalogs B,C,5,2 and A. Coming to your Catalogs for Detecting where they are being used there are 2 questions.
1. whether they are being used?
2. If yes where?
First question is answered through QS41 of the PRD client
Second question, it seems can not be answered through system, we need to do manual exercise, by going through the Descriptions of the codes (QS41) and assessing the probable module which uses this and verifying by talking to the module persons. Wish you receive better ideas from members.
Regards
KJogeswaraRao