DIFF Subgroup
C01C 1/245 Preparation from compounds containing nitrogen and sulfur
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Ammonia; Compounds thereof > Sulfates of ammonium > Preparation from compounds containing nitrogen and sulfur
CPC:
Ammonia; Compounds thereof > Sulfates of ammonium (C01C1/14 takes precedence) > Preparation from compounds containing nitrogen and sulfur
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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