2.



4.
Name: Benzoic acid, p-((3-methyl-5-oxo-1-phenyl-2-pyrazolin-4-yl)azo)-, 2-(diethylamino)ethyl ester
CAS: 30957-61-0



6.
Name: [4-[(E)-[(4-acetamidobenzoyl)hydrazinylidene]methyl]-2-methoxy-phenyl] 4-acetamidobenzoate
CAS: 56077-39-5



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