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2-Methyl-2H-pyrazole-3-carboxylic acid (2-methyl-4-o-tolylazophenyl)amide301326-22-7100 % similar O-Aminoazotoluene97-56-342 % similar Sudan IV85-83-635 % similar 1-Methyl-1H-pyrazole-5-carboxylic acid16034-46-135 % similar N,N′-Bis(2-methylphenyl)thiourea137-97-332 % similar