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4-(1H-pyrazol-4-yl)morpholine; CAS No.: 1638764-62-1; 4-(1H-pyrazol-4-yl)morpholine. PROPERTIES: This compound appears as a colorless to pale yellow oil with molecular formula C7H11N3O and a molecular weight of 157.18 g/mol. It has a boiling point in the range of 195-200 C at 760 mmHg and demonstrates good solubility in common organic solvents like methanol and ethanol. The substance is hygroscopic and should be stored in dry conditions. Recommended storage involves maintaining in tightly sealed containers at room temperature with protection from moisture and light. When handling, standard laboratory safety protocols should be followed, including the use of protective gloves and eye wear, as 4-(1H-pyrazol-4-yl)morpholine may cause skin irritation. The morpholine group requires careful handling in strongly acidic environments. APPLICATIONS: In the pharmaceutical industry, 4-(1H-pyrazol-4-yl)morpholine serves as an intermediate for synthesizing antipsychotic agents, as described in medicinal chemistry literature focusing on dopamine receptor modulators. Its morpholine substituent enables improved solubility in biological systems. Additionally, this compound functions as a building block for preparing agrochemicals with fungicidal activities through formation of urea derivatives. Academic research has explored its potential in bioconjugation reactions for creating targeted therapeutic agents, as reported in biochemical journals. The pyrazole ring system also facilitates coordination with metal ions, making it valuable for creating coordination polymers in materials science applications, as evidenced by structural chemistry publications.