Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07B
GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
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59/00
Introduction of isotopes of elements into organic compounds; ; Labelled organic compounds per se
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C07B59/004
Acyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium
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