p-Coumaric Acid 4-O-Sulfate is the sulfate conjugate of p-Coumaric Acid. p-Coumaric Acid 4-O-Sulfate is one of the metabolites in human biological fluids after coffee consumption. p-Coumaric Acid 4-O-Sulfate is also a metabolite of 4-Nonylphenol.Form:White SolidMelting Point:>279°C (Dec.)Solubility:DMSO, Methanol