IUPAC Name: (±)-1,2,3,4,10,14B-Hexahydro-2-[11C]methylpyrazino(2,1-a)pyrido(2,3-c)(2)benzazepine
Molecular Formula: C₁₇H₁₉N₃
Molecular Weight: 265.35 g/mol
Canonical SMILES: N12[C@@H](c3c(cccc3)Cc3c1nccc3)C[N@@](C)CC2
InChI: InChI=1/C17H19N3/c1-19-9-10-20-16(12-19)15-7-3-2-5-13(15)11-14-6-4-8-18-17(14)20/h2-8,16H,9-12H2,1H3
Product Categories: Intermediates & Fine Chemicals; Pharmaceuticals; Serotonin
Classification Code: Adrenergic Agents; Adrenergic Antagonists; Adrenergic alpha-antagonists; Antidepressant; Antidepressive Agents; Antidepressive agents, tricyclic; Central Nervous System Agents; Histamine Agents; Histamine Antagonists; Histamine H1 antagonists; Neurotransmitter Agents; Psychotropic Drugs
Melting Point: 114-116 °C
solubility  DMSO: 8 mg/mL, soluble
Index of Refraction: 1.667 
Molar Refractivity: 80.68 cm³ 
Molar Volume: 216.5 cm³ 
Polarizability: 31.98×10^-24 cm³ 
Surface Tension: 59.4 dyne/cm 
Density: 1.22 g/cm³ 
Flash Point: 215.3 °C 
Enthalpy of Vaporization: 68.82 kJ/mol 
Boiling Point: 432.4 °C at 760 mmHg 
Vapour Pressure of Mirtazapine (CAS NO.61337-67-5): 1.11E-07 mmHg at 25 °C

 Mirtazapine was introduced by Organon International in the United States in 1990 for the treatment of depression. It quickly spread throughout most of the rest of the world as well and became a widely used antidepressant, particularly for those desiring to gain weight.

 Mirtazapine (CAS NO.61337-67-5) is a tetracyclic antidepressant (TeCA) used primarily in the treatment of depression. It is also sometimes used as an anxiolytic, hypnotic, antiemetic, appetite stimulant, and antihistamine, among other indications. Along with its close analogues mianserin and setiptiline, mirtazapine is one of the few noradrenergic and specific serotonergic antidepressants (NaSSAs).

Human systemic effects. When heated to decomposition it emits toxic vapors of NO_x.
Safety Statements: 22-24/25 
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes.
WGK Germany of Mirtazapine (CAS NO.61337-67-5): 3

 Mirtazapine (CAS NO.61337-67-5), its Synonyms are 1,2,3,4,10,14b-Hexahydro-2-methylpyrazino(2,1-a)pyrido(2,3-c)benzazepine ; Mirtazapina ; Pyrazino(2,1-a)pyrido(2,3-c)(2)benzazepine, 1,2,3,4,10,14b-hexahydro-2-methyl- ; Remeron ; Remeron SolTab . It is white crystalline solid.