2-Hydroxy-1,3,5-benzyltricarboxaldehyde is an aldehyde derivative that can be used as an organic reagent.
2-Hydroxy- 1,3,5-benzenetricarbaldehyde has a very limited solubility in
most organic solvents and in water. It dissolves well in DMSO and in hot DMF,
and the latter can be used as a recrystallization solvent. While the trialdehyde 3 is
colorless in its free acid form, its anion absorbs light in the visible region giving
the compound a yellow coloration in solutions when dissociation can occur. The
yellow sodium salt of 2-hydroxy- 1,3,5-benzenetricarbaldehyde is only slightly
soluble in water.
2-Hydroxybenzene-1,3,5-tricarbaldehyde is synthesized from phenol or 4-hydroxybenzaldehyde
[1].


[1] A. ANDERSON. A Convenient One-Step Synthesis of 2-Hydroxy-1,3,5-Benzenetricarbaldehyde[J]. Synthetic Communications, 2000. DOI:10.1080/00397910008086933.