VINYL SULPHONE ESTER (PARA BASE ESTER )

2-AMINO-5-NITRO PHENOL (5 NAP)

N,N-DIETHYL ANILINE

N-ETHYL ANILINE

3,5-DIAMINOBENZOIC ACID (3,5 DABA)

SODIUM NITRITE

PARA AMINO ACETANILIDE

ORTHO ANISIDINE

ORTHO AMINO PHENOL

SULPHANILIC ACID

ORTHANILIC ACID