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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1/00
Dyes with anthracene nucleus not condensed with any other ring
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C09B1/50
Amino-hydroxy-anthraquinones; Ethers and esters thereof
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C09B1/51
N-substituted amino-hydroxy anthraquinone
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C09B1/512
only amino and hydroxy groups
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C09B1/512

ANTHRAQUINONIC DERIVATIVES AND THEIR USE AS COLOURING AGENTS
20210309860 · 2021-10-07 ·

The present invention relates to a compound of formula (I-0) or a salt thereof. The invention further relates to the use of such compound as a colouring agent. The invention also relates to a colouring composition comprising such compound.