IPC Main Group
C12P 33/00 Preparation of steroids
Introduced: January 1980
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- Subclass:
- FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
4 direct subcodes
Child Classifications
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- C12P 33/02 Dehydrogenating; Dehydroxylating
- C12P 33/06 Hydroxylating
- C12P 33/12 Acting on D ring
- C12P 33/2 containing heterocyclic rings