Azure A Isomer

Name: Azure A Isomer
Brand: Vaqora Chemicals
SKU: VQ-038375

About Azure A Isomer

Vaqora Chemicals supplies Azure A Isomer, an impurity of Methylene Blue registered under CAS number 34185-21-2. With the molecular formula C14H14ClN3S, it has a molar mass of 291.8 g/mol. The IUPAC name is N-methyl-7-methyliminophenothiazin-10-ium-3-amine chloride. Common synonyms include Sym-dimethylthionine and Symmetrical dimethyl thionine.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

This Methylene Blue impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer Azure A Isomer in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Methylene Blue

View every impurity, metabolite and intermediate we list for Methylene Blue.

Methylene Blue impurities

Specifications & identifiers

Chemical identifiers
Product name	Azure A Isomer
Catalogue No.	VQ-038375
CAS Number	34185-21-2
IUPAC name	N-methyl-7-methyliminophenothiazin-10-ium-3-amine chloride
Molecular formula	C₁₄H₁₄ClN₃S
Molecular weight	291.8 g/mol
Exact mass	291.0597
Grade	Reference Standard
HSN code	38229090
InChIKey	OGTRWHSHINGWEV-UHFFFAOYSA-N
SMILES	CNC1=CC2=C(C=C1)[NH+]=C3C=CC(=NC)C=C3S2.[Cl-]
PubChem CID	135824755

Physical properties
Physical form	Solid
H-bond donors / acceptors	2 / 4
TPSA	63.7 Å²
Synonyms	Sym-dimethylthionine, 3,7-Bis(methylamino)phenothiazin-5-ium chloride, Symmetrical dimethyl thionine, Phenothiazin-5-ium, 3,7-bis(methylamino)-, chloride, Phenothiazin-5-ium, 3,7-bis(methylamino)-, chloride (1:1), Phenothiazin-5-ium, 3-amino-7-(methylamino)-, chloride, N-methyl deriv.

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 Azure A Isomer?

The CAS Registry Number of Azure A Isomer is 34185-21-2. It is also known as Sym-dimethylthionine, 3,7-Bis(methylamino)phenothiazin-5-ium chloride, Symmetrical dimethyl thionine.

What is the molecular formula and molecular weight of Azure A Isomer?

Azure A Isomer has the molecular formula C14H14ClN3S and a molecular weight of 291.8 g/mol. Its IUPAC name is N-methyl-7-methyliminophenothiazin-10-ium-3-amine chloride.

What is Azure A Isomer used for?

Azure A Isomer is supplied as a characterised reference material related to Methylene Blue. 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 Azure A Isomer can I order?

We supply Azure A Isomer 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 Azure A Isomer?

Yes. Every lot of Azure A Isomer 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 Azure A Isomer be shipped internationally?

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