Zuclopenthixol-d4 succinate（Cat No.:R011724）is a deuterium-labeled form of the antipsychotic drug zuclopenthixol, featuring four deuterium atoms for use as an internal standard in analytical assays such as LC-MS/MS. The succinate ester form allows for intramuscular depot administration, offering sustained release and long-acting therapeutic effects. Zuclopenthixol is a thioxanthene derivative that acts as a dopamine D1/D2 receptor antagonist, commonly prescribed for schizophrenia and other psychotic disorders. The deuterated version enables precise quantification in pharmacokinetic and drug monitoring studies without altering the compound’s pharmacological or chemical behavior. Ideal for clinical and forensic research.