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861030 Sigma-Aldrich

Auramine O

Dye content 85 %, certified by the Biological Stain Commission

Synonym: 4,4′-(Imidocarbonyl)bis(N,N-dimethylaniline) monohydrochloride, Basic Yellow 2, Pyoctaninum aureum

  • CAS Number 2465-27-2

  • Empirical Formula (Hill Notation) C17H21N3 · HCl

  • Molecular Weight 303.83

  •  Colour Index Number 41000

  •  Beilstein Registry Number 4030061

  •  EC Number 219-567-2

  •  MDL number MFCD00012484

  •  PubChem Substance ID 24888527

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Properties

Related Categories Biochemicals and Reagents, Fluorescent Labels, Fluorescent Probes, Labels, Particles and Stains, Other Fluorescent Labels
grade   certified by the Biological Stain Commission
InChI Key   KSCQDDRPFHTIRL-UHFFFAOYSA-N
composition   Dye content, 85%
mp   >250 °C (dec.) (lit.)
absorption   λmax 370 nm
  λmax 434 nm (2nd)

Description

Packaging

25 g in glass bottle

Application

Auramine O has been used to study the cuticle/cutin in the epidermis of the pollen presenter in Vangueria infausta.

Biochem/physiol Actions

Auramine O is used for the staining of acid-fast organisms, coccidia. Auramine O along with carbol generates brilliant yellow fluorochrome of tubercle bacilli. It is effective in detecting positive cases of tuberculosis. Auramine O binds to the mycolic acid in the bacterial cell wall.

Suitability

Certified for use by fluorescence microscopy in Churukian′s modification of Truant′s fluorescent method for acid fast bacilli on paraffin sections.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 2811 6.1 / PGIII
WGK Germany 
3
RTECS 
BY3675000

Documents

Certificate of Analysis

Certificate of Origin


Same Products - New Packaging
Protocols & Articles
Peer-Reviewed Papers
15

References

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