We are offering mirtazapine ip/bp/usp cas number: 61337-67-5. mirtazapine is an antidepressantused for the treatment of moderate to severe depression. cas number: 61337-67-5 name: mirtazapine formula: c17h19n3 molecular weight: 265.39 synonyms: mirtabene;2-methyl-1,2,3,4,10,14b-hexahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepine; density: 1.22 g/cm3 melting point: 114-116 °c boiling point: 432.4 °c at 760 mmhg flash point: 215.3 °c solubility: dmso: 8 mg/ml appearance: white crystalline solid which is slightly soluble in water