Patent classifications
C
CHEMISTRY; METALLURGY
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C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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C09B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; , e.g. PIGMENTS; MORDANTS; LAKES
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29/00
Monoazo dyes prepared by diazotising and coupling
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C09B29/0003
from diazotized anilines
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C09B29/0007
containing acid groups, e.g. CO2H, SO3H, PO3H2, OSO3H, OPO2H2; Salts thereof
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