Mirtazapine Related Compounds & Impurities

Mirtazapine is a noradrenergic and specific serotonergic antidepressant (NaSSA) with H1 antihistaminic sedative effects, used for major depression.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Mirtazapine reference standards, pharmacopeial and non-pharmacopeial Mirtazapine impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Mirtazapine-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Mirtazapine
Mirtazapine
  • CAT. No.M120000
  • CAS. No.85650-52-8
  • Mol. F.C17H19N3
  • Mol. W.265.35 g/mol
  • Stock Status:Instock
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Mirtazapine EP Impurity A
Mirtazapine EP Impurity A
  • CAT. No.M120001
  • CAS. No.155172-12-6
  • Mol. F.C17H19N3O
  • Mol. W.281.35 g/mol
  • Stock Status:Instock
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Mirtazapine EP Impurity B
Mirtazapine EP Impurity B
  • CAT. No.M120002
  • CAS. No.61337-89-1
  • Mol. F.C17H21N3O
  • Mol. W.283.37 g/mol
  • Stock Status:Instock
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Mirtazapine EP Impurity C
Mirtazapine EP Impurity C
  • CAT. No.M120003
  • CAS. No.191546-96-0
  • Mol. F.C17H17N3O
  • Mol. W.279.34 g/mol
  • Stock Status:Instock
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Mirtazapine EP Impurity D
Mirtazapine EP Impurity D
  • CAT. No.M120004
  • CAS. No.61337-68-6
  • Mol. F.C16H17N3
  • Mol. W.251.33 g/mol
  • Stock Status:Instock
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4-Methyl-1-(3-methyl-2-pyridinyl)-2-phenylpiperazine
4-Methyl-1-(3-methyl-2-pyridinyl)-2-phenylpiperazine
  • CAT. No.M120005
  • CAS. No.191546-94-8
  • Mol. F.C17H21N3
  • Mol. W.267.37 g/mol
  • Stock Status:Instock
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Mirtazapine Carboxylic Acid
Mirtazapine Carboxylic Acid
  • CAT. No.M120007
  • CAS. No.61338-13-4
  • Mol. F.C17H19N3O2
  • Mol. W.297.35 g/mol
  • Stock Status:Instock
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Mirtazapine Intermediate 1
Mirtazapine Intermediate 1
  • CAT. No.M120008
  • CAS. No.5271-27-2
  • Mol. F.C11H16N2
  • Mol. W.176.26 g/mol
  • Stock Status:Instock
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Mirtazapine EP Impurity E
Mirtazapine EP Impurity E
  • CAT. No.M120009
  • CAS. No.191546-94-8
  • Mol. F.C17H21N3
  • Mol. W.267.37 g/mol
  • Stock Status:Limited Stock
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Mirtazapine EP Imp F (USP RC D)
Mirtazapine EP Imp F (USP RC D)
  • CAT. No.M120010
  • CAS. No.191546-97-1
  • Mol. F.C17H17N3O
  • Mol. W.279.34 g/mol
  • Stock Status:Instock
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Mirtazapine Cyano Impurity
Mirtazapine Cyano Impurity
  • CAT. No.M120012
  • CAS. No.61337-88-0
  • Mol. F.C17H18N4
  • Mol. W.278.35 g/mol
  • Stock Status:Instock
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2-Chloro-3-pyridinecarbonitrile
2-Chloro-3-pyridinecarbonitrile
  • CAT. No.M120014
  • CAS. No.6602-54-6
  • Mol. F.C6H3ClN2
  • Mol. W.138.55 g/mol
  • Stock Status:Instock
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Mirtazapine Cyano Impurity
Mirtazapine Cyano Impurity
  • CAT. No.M120015
  • CAS. No.61337-88-0
  • Mol. F.C17H18N4
  • Mol. W.278.35 g/mol
  • Stock Status:Instock
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8-Hydroxy Mirtazapine
8-Hydroxy Mirtazapine
  • CAT. No.M120020
  • CAS. No.102335-57-9
  • Mol. F.C17H19N3O
  • Mol. W.281.36 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Impurity 4
Mirtazapine Impurity 4
  • CAT. No.M120021
  • CAS. No.23174-98-3
  • Mol. F.C18H22N2
  • Mol. W.266.40 g/mol
  • Stock Status:Custom Synthesis
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1,2,3,4,10,14b-Hexahydrobenzo[c]pyrazino[1,2-a]pyrido[3,2-f]azepine maleate
1,2,3,4,10,14b-Hexahydrobenzo[c]pyrazino[1,2-a]pyrido[3,2-f]azepine maleate
  • CAT. No.M120022
  • CAS. No.135928-31-3
  • Mol. F.C20H21N3O4
  • Mol. W.367.40 g/mol
  • Stock Status:Instock
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Mirtazapine Impurity 3
Mirtazapine Impurity 3
  • CAT. No.M120023
  • CAS. No.23175-16-8
  • Mol. F.C11H17NO2
  • Mol. W.195.26 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Impurity 1
Mirtazapine Impurity 1
  • CAT. No.M120024
  • CAS. No.5271-29-4
  • Mol. F.C12H18N2
  • Mol. W.190.28 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Related Compound B
Mirtazapine Related Compound B
  • CAT. No.M120026
  • CAS. No.155172-12-6(free base)
  • Mol. F.C17H19N3O.H2O
  • Mol. W.299.37 g/mol
  • Stock Status:Limited Stock
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Mirtazapine Impurity 5
Mirtazapine Impurity 5
  • CAT. No.M120027
  • CAS. No.22270-22-0
  • Mol. F.C11H15Cl2N
  • Mol. W.232.15 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Mirtazapine EP Impurity D
N-Nitroso Mirtazapine EP Impurity D
  • CAT. No.M120028
  • CAS. No.NA
  • Mol. F.C16H16N4O
  • Mol. W.280.32 g/mol
  • Stock Status:Instock
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Mirtazapine Carbonitrile Oxalate
Mirtazapine Carbonitrile Oxalate
  • CAT. No.M120031
  • CAS. No.331815-15-7
  • Mol. F.C17H18N4.C2H2O4
  • Mol. W.368.39 g/mol
  • Stock Status:Instock
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Mirtazapine EP Impurity D Hydrochloride
Mirtazapine EP Impurity D Hydrochloride
  • CAT. No.M120034
  • CAS. No.1188265-41-9
  • Mol. F.C16H17N3.HCl
  • Mol. W.287.79 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Nitroso Impurity 2
Mirtazapine Nitroso Impurity 2
  • CAT. No.M120035
  • CAS. No.NA
  • Mol. F.C11H15N3O
  • Mol. W.205.26 g/mol
  • Stock Status:Custom Synthesis
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N Nitroso N Desmethyl Mirtazapine EP Impurity B
N Nitroso N Desmethyl Mirtazapine EP Impurity B
  • CAT. No.M120036
  • CAS. No.NA
  • Mol. F.C16H18N4O2
  • Mol. W.298.34 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso N-Desmethyl Mirtazapine EP Impurity E
N-Nitroso N-Desmethyl Mirtazapine EP Impurity E
  • CAT. No.M120037
  • CAS. No.NA
  • Mol. F.C16H18N4O
  • Mol. W.282.34 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso N-Desmethyl Mirtazapine EP Impurity F
N-Nitroso N-Desmethyl Mirtazapine EP Impurity F
  • CAT. No.M120038
  • CAS. No.NA
  • Mol. F.C16H14N4O2
  • Mol. W.294.30 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Nitroso Impurity 1
Mirtazapine Nitroso Impurity 1
  • CAT. No.M120039
  • CAS. No.NA
  • Mol. F.C11H15N3O
  • Mol. W.205.26 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Impurity 2
Mirtazapine Impurity 2
  • CAT. No.M120040
  • CAS. No.NA
  • Mol. F.C16H17N3O2
  • Mol. W.283.33 g/mol
  • Stock Status:Custom Synthesis
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8-Hydroxy Mirtazapine Beta-D-Glucuronide
8-Hydroxy Mirtazapine Beta-D-Glucuronide
  • CAT. No.M120041
  • CAS. No.155239-47-7
  • Mol. F.C23H27N3O7
  • Mol. W.457.48 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Related Compound C
Mirtazapine Related Compound C
  • CAT. No.M120042
  • CAS. No.191546-96-0
  • Mol. F.C17H17N3O
  • Mol. W.279.34 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Related Compound A
Mirtazapine Related Compound A
  • CAT. No.M120043
  • CAS. No.61337-68-6
  • Mol. F.C16H17N3
  • Mol. W.251.33 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine Nitroso Impurity 3
Mirtazapine Nitroso Impurity 3
  • CAT. No.M120044
  • CAS. No.NA
  • Mol. F.C16H16N4O3
  • Mol. W.312.32 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

Mirtazapine N-Beta-Glucuronide Diastereomer A
Mirtazapine N-Beta-Glucuronide Diastereomer A
  • CAT. No.M120030
  • CAS. No.1080533-15-8
  • Mol. F.C23H28N3O6
  • Mol. W.442.50 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Mirtazapine-D4
Mirtazapine-D4
  • CAT. No.M120006
  • CAS. No.1215898-55-7
  • Mol. F.C17H15D4N3
  • Mol. W.269.38 g/mol
  • Stock Status:Custom Synthesis
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Desmethylmirtazapine D4
Desmethylmirtazapine D4
  • CAT. No.M120017
  • CAS. No.1188331-80-7
  • Mol. F.C16H13D4N3
  • Mol. W.255.35 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine-13C,D3 Hydrochloride
Mirtazapine-13C,D3 Hydrochloride
  • CAT. No.M120018
  • CAS. No.NA
  • Mol. F.C1613CH17D3ClN3
  • Mol. W.448.96 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine-D4 DiHydrochloride
Mirtazapine-D4 DiHydrochloride
  • CAT. No.M120019
  • CAS. No.NA
  • Mol. F.C17H15D4N3.2HCl
  • Mol. W.342.30 g/mol
  • Stock Status:Custom Synthesis
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N-Desmethyl Mirtazapine-D4-Hydrochoride
N-Desmethyl Mirtazapine-D4-Hydrochoride
  • CAT. No.M120029
  • CAS. No.1188266-12-7
  • Mol. F.C16H14D4ClN3
  • Mol. W.291.81 g/mol
  • Stock Status:Custom Synthesis
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Mirtazapine D3
Mirtazapine D3
  • CAT. No.M120032
  • CAS. No.1216678-68-0
  • Mol. F.C17H16D3N3
  • Mol. W.268.37 g/mol
  • Stock Status:Instock
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S-Mirtazapine D3
S-Mirtazapine D3
  • CAT. No.M120033
  • CAS. No.NA
  • Mol. F.C17H16D3N3
  • Mol. W.268.37 g/mol
  • Stock Status:Custom Synthesis
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