Olanzapine is an atypical antipsychotic chemical compound belonging to the thienobenzodiazepine class. It functions as an antagonist at multiple neurotransmitter receptors, including dopamine D2 and serotonin 5-HT2A, making it useful in research for schizophrenia, bipolar disorder, and related psychiatric conditions. This high-purity (98%) reagent is suitable for pharmaceutical synthesis, analytical standards, and laboratory studies. It is not intended for direct human therapeutic use. Chemical formula: C₁₇H₂₀N₄S; CAS number: 132539-06-1; Molecular weight: 312.44 g/mol.