We offer 5 nitro salicylaldehyde. Name: 2-hydroxy-5-nitrobenzaldehyde cas: 97-51-8 molecular formula:c7h5no4 molecular weight:167.1189 g.m.chemsys driven by its passion for adhering to international quality standards has created an excellent in-house r&d centre, focused on identifying and manufacturing high value added, complex new molecules for introduction in the generic market.!