Sulfanilic acid is a synthetic intermediate.1,2 It has been used in the synthesis of activated carbon for biodiesel preparation, as well as various nanocomposites.
1.Malins, K., Kampars, V., Brinks, J., et al.Synthesis of activated carbon based heterogenous acid catalyst for biodiesel preparationAppl. Catal. B-Environ.176-177553-558(2015) 2.Zhang, L., Shi, T., Wu, S., et al.Sulfonated graphene oxide: The new and effective material for synthesis of polystyrene-based nanocompositesColloid Polym. Sci.291(9)2061-2068(2013)