IPC Main Group
C07B 63/00 Purification; Separation specially adapted for the purpose of recovering organic compounds; Stabilisation; Use of additives
Introduced: January 1985
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
2 direct subcodes
Child Classifications
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- C07B 63/02 by treatment giving rise to a chemical modification
- C07B 63/04 Use of additives