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VAQORACHEMICALS

Azur C

Synonyms: N-Methylthionine · Azure C · Monomethylthionine · Methylene Azure C

CAS No.531-57-7
FormulaC13H12ClN3S
Mol. weight277.77
Catalogue No.VQ-000485
PurityPuriss
HSN32049000

Azur C (CAS 531-57-7) – biological stain, Puriss grade. C13H12ClN3S, MW 277.77. Get a quote from Vaqora Chemicals, COA included, shipped worldwide.

Pack sizesPrice on quotation · bulk available
1 g
5 g
100 g
1 kg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Azur C

Listed under CAS 531-57-7, Azur C is a biological stain available from Vaqora Chemicals in Puriss grade. Formula C13H12ClN3S, molecular weight 277.77 g/mol. The IUPAC name is 7-methyliminophenothiazin-10-ium-3-amine chloride. Alternative names: N-Methylthionine and Azure C.

The product is provided as a powder. Recommended storage is at room temperature in a dry place, with the container kept tightly sealed. Handle it with standard laboratory precautions and appropriate personal protective equipment.

It is commonly used for histology and cytology staining, microscopy and clinical laboratories. It is used across academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 1 g, 5 g, 100 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product nameAzur C
Catalogue No.VQ-000485
CAS Number531-57-7
IUPAC name7-methyliminophenothiazin-10-ium-3-amine chloride
Molecular formulaC13H12ClN3S
Molecular weight277.77 g/mol
Exact mass277.044
GradePuriss
HSN code32049000
InChIKeyDDGMDTGNGDOUPX-UHFFFAOYSA-N
SMILESCN=C1C=CC2=[NH+]C3=C(C=C(C=C3)N)SC2=C1.[Cl-]
PubChem CID135421845
Physical properties
Physical formPowder
AppearancePowder
H-bond donors / acceptors2 / 4
TPSA77.7 Ų
StorageRoom temperature
SynonymsN-Methylthionine, Azure C, Monomethylthionine, Methylene Azure C, Monomethylthionine chloride, 3-amino-7-(methylamino)phenothiazin-5-ium chloride, 3-Amino-7-methylaminophenothiazin-5-ium chloride, Monomethyldiaminodiphenazothionium chloride, 3-Imino-7-(methylamino)-3H-phenothiazine hydrochloride, Azure C (Technical Grade), Azure C (VAN)

Documents

Frequently asked questions

What is the CAS number of Azur C?

The CAS Registry Number of Azur C is 531-57-7. It is also known as N-Methylthionine, Azure C, Monomethylthionine.

What is the molecular formula and molecular weight of Azur C?

Azur C has the molecular formula C13H12ClN3S and a molecular weight of 277.77 g/mol. Its IUPAC name is 7-methyliminophenothiazin-10-ium-3-amine chloride.

Which grade and pack sizes of Azur C can I order?

We supply Azur C in Puriss grade, in 1 g, 5 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Azur C?

Yes. Every lot of Azur C 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 Azur C be shipped internationally?

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

How should Azur C be stored?

Room temperature. Keep the container tightly closed and refer to the SDS for full handling guidance.

Enquire about Azur C

We reply within one business day with price, pack options, lead time and documentation.

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
How ordering works

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