text: CSPD ([3-(1-chloro-3-methoxyspiro[adamantane-4,4-dioxetane]-3'-yl)phenyl] dihydrogen phosphate) is a chemical substance with formula CHClOP.  It is a component of enhanced chemiluminescence enzyme-linked immunosorbent assay (ELISA) kits, used for the detection of minute amounts of various substances such as proteins.