6-(Tritylthio)hexanoic acid is primarily utilized in organic synthesis as a protective group for thiols. The trityl group effectively shields the thiol functionality during chemical reactions, allowing for selective modifications elsewhere in the molecule. This compound is particularly valuable in peptide synthesis, where it helps prevent unwanted side reactions involving thiol groups. Additionally, it finds application in the preparation of functionalized polymers and materials, where controlled introduction of thiol groups is necessary. Its stability under various reaction conditions makes it a reliable choice for complex synthetic pathways.