C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
6/1, 400/7089, 2
C09B 55/00 (2006.01) C07D 209/48 (2006.01) C07D 235/26 (2006.01) C07D 237/32 (2006.01) C07D 239/96 (2006.01) C07D 241/44 (2006.01) C07D 263/58 (2006.01) D06P 1/13 (2006.01)
Patent
CA 1053250
Abstract of the Disclosure: Condensing of 1-formyl-2-hydroxy-3-naphthalenecarboxylic acid arylamides with ammonia or aromatic amines yields novel azamethines which are useful as coloring matters, especially as pigments.
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