Synthesis and In Vitro Antimicrobial and Anthelminthic Evaluation of Naphtholic and Phenolic Azo Dyes

Table 1

Synthesised azo dye ligands and their physical data.

Compounds	Code	Colour	Molecular formula	Molecular weight (g/moL)	% Yield	Melting point (°C)	Rf	UV-vis (nm)	Infrared(cm^−1)
	A1	Dark brown	C17H12N2O3	292.29	86	240–242	0.84	380	1440 (N=N), 3352 (−OH), 1484 (C=C)
	A2	Brick red	C16H11ClN2O	282.72	74	171–173	0.83	250	1451 (N=N), 3300 (−OH), 1573 (C=C)
	A3	Orange	C19H16N2O3	320.34	81	158–160	0.86	360	1418 (N=N), 3612 (−OH), 1574 (C=C)
	A4	Orange	C16H13N3O3S	327.36	88	187–190	0.91	485	1519 (N=N), 3600 (−OH), 1618 (C=C)
	B1	Pale brown	C13H10N2O3	242.23	80	240–242	0.74	360	1466 (N=N), 3409 (−OH), 1492 (C=C)
	B2	Orange	C15H14N2O3	270.28	81	220–221	0.27	360	1418 (N=N), 3612 (−OH), 1574 (C=C)
	B3	Brick red	C12H8ClN3O3	277.66	22	160–162	0.22	250	1451 (N=N), 3600 (−OH), 1573 (C=C)
	B4	Brick red	C12H9N3O3	243.22	79	159–160	0.80	380	1440 (N=N), 3600 (−OH), 1484 (C=C)