Thiocarboxylic Acids, etc.
Rule C-548 
548.1 - Compounds containing a -CS- group as a ring member are named as heterocyclic compounds by the Rules of Section B and the suffix
"-thione".
Examples to Rule C-548.1

Exceptions:
The following are examples of trivial and semitrivial names retained:

See Recommendations'93 R-5.7.1.3
- Next:
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Sulfonium Compounds Rule C-551
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