1 2 4 trihydroxy benzene July 8, 2019 16 32 64 128 2 4 6-trihydroxybenzene-1 3 5-tricarbaldehyde 2 4 6 trihydroxy 1 3 5 benzenetricarbaldehyde 1 2 4-trihydroksybenzen 1 2 4-benzenetricarboxylic acid 1 2 4-trimethoxybenzene