Azure B Chemical Structure

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PRODUCT SPECIFICATIONS
Product Name AZURE B
IUPAC Name dimethyl-[7-(methylamino)phenothiazin-3-ylidene]azanium;chloride
SYNONYMS Azure I; N,N,N’-Trimethylthionin; Methylene Azure B; AZUR I
CAS No 531-55-5
Color Index No 52010
Molecular Formula C15H16ClN3S
Molecular Weight 305.8 g/mol
PubChem CID 68275
SR. No Criteria Limit/Specification
1 Appearance (Color) Dark green to brown powder
2 Solubility (Color)
( c = 1mg/ml; Water)
Blue to Very Dark Blue
3 Infrared spectrum Conforms to Structure
4 Wavelength (C = 0.01 G/L IN 0.1N HCL IN MEOH)
Extinction Coefficient
638 - 644
≥ 67000
5 Wavelength
Extinction Coefficient
287 - 293
≥ 36000
6 Wavelength
Absorbance
241 - 247
≥ 13000
7 Purity (HPLC) ≥ 85.0%
8 Elemental Analysis
Carbon
Nitrogen

≥ 49.0 %
≥ 11.4 %
Applications: Azure B is used mainly as a Biological Stain.
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