S-Mirtazapine

About S-Mirtazapine

S-Mirtazapine is an impurity of Mirtazapine carrying the CAS registry number 61337-87-9. With the molecular formula C17H19N3, it has a molar mass of 265.35 g/mol. Systematically, it is named (7S)-5-methyl-2,5,19-triazatetracyclo[13.4.0.02,7.08,13]nonadeca-1(15),8,10,12,16,18-hexaene. Common synonyms include Esmirtazapine and (+)-Mirtazapine.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

This Mirtazapine impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Mirtazapine

View every impurity, metabolite and intermediate we list for Mirtazapine.

Mirtazapine impurities

Specifications & identifiers

Chemical identifiers
Product name	S-Mirtazapine
Catalogue No.	VQ-035146
CAS Number	61337-87-9
IUPAC name	(7S)-5-methyl-2,5,19-triazatetracyclo[13.4.0.02,7.08,13]nonadeca-1(15),8,10,12,16,18-hexaene
Molecular formula	C₁₇H₁₉N₃
Molecular weight	265.35 g/mol
Exact mass	265.1579
Grade	Reference Standard
HSN code	38229090
InChIKey	RONZAEMNMFQXRA-MRXNPFEDSA-N
SMILES	CN1CCN2[C@H](C1)C3=CC=CC=C3CC4=C2N=CC=C4
PubChem CID	3085218

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	0 / 3
TPSA	19.4 Å²
Synonyms	Esmirtazapine, (+)-Mirtazapine, (s)-6-azamianserin, Mirtazapine, (s)-, (s)-org 3770, Org-44-20, (S)-1,2,3,4,10,14b-Hexahydro-2-methylpyrazino(2,1-a)pyrido(2,3-c)(2)benzazepine, Org 44-20, (N-methyl-11C)mirtazapine, (S)-2-methyl-1,2,3,4,10,14b-hexahydrobenzo[c]pyrazino[1,2-a]pyrido[3,2-f]azepine

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of S-Mirtazapine?

The CAS Registry Number of S-Mirtazapine is 61337-87-9. It is also known as Esmirtazapine, (+)-Mirtazapine, (s)-6-azamianserin.

What is the molecular formula and molecular weight of S-Mirtazapine?

S-Mirtazapine has the molecular formula C17H19N3 and a molecular weight of 265.35 g/mol. Its IUPAC name is (7S)-5-methyl-2,5,19-triazatetracyclo[13.4.0.02,7.08,13]nonadeca-1(15),8,10,12,16,18-hexaene.

What is S-Mirtazapine used for?

S-Mirtazapine is supplied as a characterised reference material related to Mirtazapine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of S-Mirtazapine can I order?

We supply S-Mirtazapine in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with S-Mirtazapine?

Yes. Every lot of S-Mirtazapine is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can S-Mirtazapine be shipped internationally?

Yes. We export S-Mirtazapine worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.