CPC Subgroup
C01B 21/083 containing one or more halogen atoms
Full Title
Nitrogen; Compounds thereof > Compounds containing nitrogen and non-metals (C01B21/06, C01B21/08 take precedence) > containing one or more halogen atoms
2 direct subcodes
Child Classifications
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- C01B 21/084 containing also one or more oxygen atoms, e.g. nitrosyl halides