Red colors

Details Red colors Red colors

C - Chemistry, Metallurgy

09

B

260/236.14

C09B 5/02 (2006.01)

Patent

CA 1142921

ABSTRACT OF THE DISCLOSURE Red colors having the anthraquinone structure Image are disclosed wherein R1 and R2 are independently selected from among hydrogen, halo, lower alkyl, lower alkoxy, nitro, and sulfonate, and X represents halogen or -NR3R4, wherein R3 and R4 are independently selected from hydrogen, alkyl and alkylsulfonate. Precursors are disclosed as well.

379312

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