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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Mirtazapine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Mirtazapine impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Mirtazapine-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Mirtazapine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
8-Hydroxy Mirtazapine-d3 β-D-Glucuronide Stable Isotopes CS-T-98448 Not Available Enquire
Desmethyl 2N-Nitroso Mirtazapine-d6 Stable Isotopes CS-O-42867 ---- In Stock
Mirtazapine d4 DIHCl Stable Isotopes CS-EO-02471 85650-52-8 unlabeled free base Enquire
Mirtazapine-13C,d3 Stable Isotopes CS-O-02977 85650-52-8(Unlabeled) In Stock
Mirtazapine-13C-D3 HCl Stable Isotopes CS-EO-02428 Not Available Enquire
Mirtazapine-d3 Stable Isotopes CS-O-06784 1216678-68-0 In Stock
Mirtazapine-d3 N-Glucuronide Stable Isotopes CS-T-98426 Not Available Enquire
Mirtazapine-d3 N-Sulfate Sodium Salt Stable Isotopes CS-T-102210 Not Available Enquire
Mirtazapine-d4 Stable Isotopes CS-T-83650 1215898-55-7 Enquire
N-Desmethyl Mirtazapine-D4-Hydrochoride Stable Isotopes CS-SN-00053 1188266-12-7 Enquire
N-Nitroso Mirtazapine EP Impurity D D4 Stable Isotopes CS-O-53232 ---- Enquire
R-Mirtazapine-d3 Stable Isotopes CS-EO-02548 Not Available Enquire
R-Mirtazapine-d4 Stable Isotopes CS-O-44260 61364-37-2 (Unlabelled) Enquire
S-Mirtazapine-d3 Stable Isotopes CS-EO-02549 Not Available Enquire
S-Mirtazapine-d4 Stable Isotopes CS-O-44261 61337-87-9 (Unlabelled) Enquire
Desmethyl Mirtazapine-d4 Stable Isotopes CS-O-35523 1188331-80-7 Enquire
Desmethyl Mirtazapine-d6 Dihydrochloride Stable Isotopes CS-T-93859 61337-68-6 (unlabeled) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Mirtazapine API CS-O-01928 85650-52-8 In Stock
Mirtazapine Hemihydrate API CS-O-01869 341512-89-8 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Mirtazapine EP Impurity A / Mirtazapine N-oxide Metabolite CS-T-58857 155172-12-6 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-Mirtazapine quaternary ammonium glucuronide Impurity CS-O-52640 205121-67-1 Enquire
1-(3-Carboxypyrid-2-yl)-2-phenyl-4-methyl-piperazine HCl Impurity CS-O-56396 61338-13-4(Free salt) Enquire
2-(4-methyl-2-phenylpiperazin-1-yl)nicotinonitrile oxalate Impurity CS-O-40540 331815-15-7 In Stock
2-chloro-N-(2-chloroethyl)-N-methyl-2-phenylethanamine Impurity CS-ED-41788 22270-22-0 Enquire
4-Amino salicylic acid / Mirtazapine EP impurity E Impurity CS-T-03461 65-49-6 In Stock
Mirtazapine EP Impurity B Impurity CS-O-32061 61337-89-1 In Stock
Mirtazapine EP Impurity C Impurity CS-T-60028 191546-96-0 In Stock
Mirtazapine EP Impurity D Impurity CS-O-07935 61337-68-6 In Stock
Mirtazapine Related Compound B Impurity CS-O-52660 2749357-59-1 Enquire
N-Desmethyl Mirtazapine dihyrochloride Impurity CS-O-56425 2724507-13-3 In Stock
Mirtazapine resolution mixture Impurity CS-O-40319 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(3-Carboxy-2-pyridyl)-4-methyl-2-phenylpiperazine Intermediate CS-T-10477 61338-13-4 In Stock
N-Methyl-3-phenyl piperazine Intermediate CS-O-31876 5271-27-2 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Mirtazapine N-Glucuronide (Mixture of Diastereomers) Glucuronide CS-T-94133 1080533-15-8 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Chloro-3-cyanopyridine Fine Chemicals CS-M-01808 6602-54-6 In Stock
1,4-dimethyl-2-phenylpiperazine Fine Chemicals CS-ED-01421 5271-29-4 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Mirtazapine Nitroso Impurity 2 Nitrosamine CS-O-53293 ---- In Stock
N-Nitroso Mirtazapine EP Impurity D Nitrosamine CS-EO-02307 ---- In Stock


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Mirtazapine Secondary Standards CS-SS-24060 85650-52-8 Enquire
Mirtazapine Secondary Standards CS-ER-03074 85650-52-8 Enquire
Mirtazapine Related Compound A Secondary Standards CS-SS-26341-50MG 61337-68-6 Enquire
Mirtazapine Related Compound B Secondary Standards CS-SS-26334-50MG 155172-12-6 Enquire
Mirtazapine Related Compound D Secondary Standards CS-SS-26335-100MG 191546-97-1 Enquire