4-Iodophenol (p-iodophenol) is an aromatic organic compound.

4-Iodophenol undergoes a variety of coupling reactions in which the iodine substituent is replaced by a new carbon group para to the hydroxy group of the phenol.

[3] It is also used to enhance chemiluminescence for detection of cancer cells[4] and in the Eclox assay.

An alternative synthesis involves reaction of salicylic acid with iodine, followed by decarboxylation.

[5] This organic chemistry article is a stub.