Category
Mirtazapine
CAS Number
Mirtazapine STD - 85650-52-8 : IMP - A - 155172-12-6 : IMP - B - 61337-89-1 : IMP - C - 191546-96-0 : IMP - D - 61337-68-6 : IMP - E - 191546-94-8 : IMP - F - 191546-97-1
Molecular Formula
Mirtazapine STD - C17H19N3 : IMP - A - C17H19N3O : IMP - B - C17H21N3O : IMP - C - C17H17N3O : IMP - D - C16H17N3 : IMP - E - C17H21N3: IMP - F - C17H17N3O :
Molecular Weight
Mirtazapine STD - 265.35 g/mol : IMP - A - 281.35 g/mol: IMP - B - 283.37 g/mol : IMP - C - 279.3 g/mol : IMP - D - 251.33 g/mol : IMP - E - 267.37 g/mol : IMP - F - 279.34 g/mol:
Synonym

Mirtazapine - (14bRS)-2-Methyl-1,2,3,4,10,14b-hexahydropyrazino [2,1-a]pyrido[2,3-c][2]benzazepine ; 

Mirtazapine EP Impurity A - (14bRS)-2-methyl-1,2,3,4,10,14b-hexahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepine 2-oxide; 

Mirtazapine EP Impurity B- [2-[(2RS)-4-methyl-2-phenylpiperazin-1-yl]pyridin-3-yl]methanol;

Mirtazapine EP Impurity C -  (14bRS)-2-methyl-3,4,10,14b-tetrahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepin-1(2H)-one ; 

Mirtazapine EP Impurity D -  (14bRS)-1,2,3,4,10,14b-hexahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepine ;

Mirtazapine EP Impurity E - (2RS)-4-methyl-1-(3-methylpyridin-2-yl)-2-phenylpiperazine ; 

Mirtazapine EP Impurity F - (14bRS)-2-methyl-1,3,4,14b-tetrahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepin-10(2H)-one ;

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Mirtazapine is used as a certified reference standard (CRS) in system suitability testing to ensure the accuracy, precision, and reliability of analytical methods. It helps evaluate chromatographic performance parameters such as retention time, resolution, and peak symmetry in pharmaceutical analysis.