AZURE B

PRODUCT IDENTIFICATION

CAS NO. 531-55-5

AZURE B

EINECS NO. 208-511-2
FORMULA C15H16ClN3S
MOL WT. 305.82
H.S. CODE  
TOXICITY  
SMILES

 

SYNONYMS Azure I C.I. 52010 Methylene Azur B Trimethylthionine chloride
3-Methylamino-7-dimethylaminophenothiazin-5-ium chloride Cloruro de 3-metilamino-7- dimetilaminofenotiazin-5-io Chlorure de 3-methylamino-7- dimethyl aminophé nothiazine- 5-ium

CLASSIFICATION

NATURAL COLORANT

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE dark green crystalline powder
MELTING POINT 205 C (Decomposes)
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER Soluble (sparingly soluble in alcohol)
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS  
FLASH POINT

 

STABILITY Stable under ordinary conditions. Hygroscopic

APPLICATIONS

Azure, a methylated thiazine dye, is a metachromatic basic dye ranging from green (to chromosomes) and blue (to nucleoli and cytoplasmic ribosomes), to red color (to deposits containing mucopolysaccharides). There are many methylated homologues used as components of many polychrome stains in combination with eosin and methylene blue in pH adjusted solutions.
  • Azure A (C.I. #: 52005, CAS # : 531-53-3) : Also called Methylene Azur A asymmetrical dimethylthionine a dye used in nuclear and blood stain.
  • Azure B (C.I. #: 52010, CAS #: 531-55-5) Also called Methylene Azur B trimethylthionine chloride a dye used in biological stain a component of polychrome Giemsa's stain for blood protozoa. Used for staining semi-thin sections of plant tissue.
  • Azure C: monomethylthionine chloride used in staining of mucins and cartilage.
  • Azur II (CAS #: 37247-10-2): a mixture of azure B (azure I) and methylene blue in equal amounts.
  • Azuresin: a complex of azure A and carbacrylic cationic exchange resin, used as a diagnostic aid in detection of gastric achlorhydria without intubation.

(Azure is the name of blue color between blue and cyan like sky color on a clear day.)

SALES SPECIFICATION

APPEARANCE

dark green crystalline powder

DYE CONTENT

90.0% min

LOSS ON DRYING

5.0%

TRANSPORTATION
PACKING  
HAZARD CLASS Not regulated
UN NO.  
OTHER INFORMATION
Hazard Symbols: , Risk Phrases: , Safety Phrases: 24/25
BIOLOGICAL STAINS, INDICATORS