Pharmaceutical co-crystals are defined as multiple component crystals in which at least one component is molecular and a solid at room temperature (the co-former) and forms a supramolecular synthon with a molecular or ionic API (10) Numerous APIs that exhibit undesirable solubility or stability and possess multiple hydrogen-bonding sites have been (or potentially can be) studied in the context of co-crystallization. One of such potential APIs was identified to be Aceclofenac and is of interest for co- crystallization