Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07F
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
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9/00
Compounds containing elements of Groups 5 or 15 of the Periodic Table
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C07F9/30
Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids; ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
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C07F9/3205
the acid moiety containing a substituent or a structure which is considered as characteristic
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C07F9/3247
Esters of acids containing the structure -C(=X)-P(=X)(R)(XH) or NC-P(=X)(R)(XH), (X = O, S, Se)
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