Lurasidone sulphate

Lurasidone sulphate is a synthetic impurity derived from the antipsychotic parent drug Lurasidone, characterized by the introduction of a sulfate ester or salt moiety onto the piperazine nitrogen or a hydroxylated aromatic substituent. This modification disrupts the parent compound's dibenzothiazepine-thiazole core's electronic and steric properties, reducing its pharmacological activity. The sulfate functional group introduces enhanced polarity and ionic interactions, distinguishing it from related impurities. It arises as a byproduct during synthetic sulfation steps or acid-catalyzed side reactions. This compound serves as an HPLC reference standard for quantitative impurity profiling in Lurasidone drug substance analysis.