Janus Green

Solubility Soluble in water slightly soluble in ethanol Melting Point 200 °C Absorption (Amax) 660 nm, 395 nm 

CA Index Name Phenazinium, 3-(diethylamino)-7-[2-[4-(dimethylamino)phenyl]diazenyl]-5-phenyl-, chloride 

Merck Index Number 5255 Chemical/Dye Class Phenazine Molecular Formula CsoHsiClNg Molecular Weight 511.06 

Physical Form Dark green to dark brown to dark black powder 

Staining Applications Biomolecules brain spinal cord chromosomes DNA embryos fungi lymph vessels mitochondria neurons nucleic acids sperms tissue culture monolayers yeast cell hairs  

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Janus Green B (3-dimethylamino-7-[4-dimethylaminoazo]-5-phenylphenazonium chloride) [2869-83-2] M 511.1, m >200 . Dissolves in H2O to give a bluish violet soln which... 

Prevot reported on Janus green reduction methods with a number of different organisms 3 32. 

Fig. 15.19 Change in the absorbance of the TE0 mode of the MCLW mode to Janus Green B at 610 nm when an electric field is applied. (A) Deionized water, (B) Janus green B after 30 min without applying electric field, (C) Janus green B after applying the electric field for 2 min and (D) Janus green B after reversal of the potential for 2 min. Reprinted from Ref. 52 with permission. 2008 Elsevier...

Janus Green B 3-(Diethylamino)-7-[[4-dimethylamino)phenyl[azo]-5-phenyl-phenazinium chloride... 

Fig. 3.174. Example of NACE electropherogram of mixture of dyes (1, Janus Green 2, Brilliant Cresyl Blue 3, Sudan Black 4, Thymolphtalein 5, Phenolphtalein) in acetonitrile. Added ionic liquid was l-butyl-3-methyl fluoroacetate (3.3 mg/ml). Applied voltage +18kV, current 8 pA. Reprinted with permission from M. Vaher et al. [207].

Janus Green B (3-dimethylamino-7-[4-dimethylaminoazo]-5-phenylphenazonium chloride (2869-83] M 511.1. Dissolves in H2O to give a bluish violet soln which becomes colourless when made lOM in. NaOH. Dissolve in EtOH to give a blue-violet colour, filter from insoluble material then add dry Et2O whereby the dye separates out leaving a small amount of blue colour in soln. Filter off the solid and dry in vacuum. Store in a dark bottle. 

Indone blue, naphthindone, Janus blue, Janus dark blue, Janus green, Janus olack, Janus grey, diazine blue, diazine green, x diazine black, diazine brown, bnlhant diazine blue, indoine blue, indole blue The solu tion is de-colonsed and a pink colour returns on exposure to air Safranine Azo Class ... 

Janus green/diazine green, etc. Colour becomes red just before being deoolonsed. Colour returns violet or green on exposure to air Saframne Azo Class,... 

Diazine green (0-01 %). Dissolve 0 01 g diazine green (Janus green, Colour Index 11050) in 100 ml water. 

Safavi A, Peiravian F, and Shams E. A selective uphill transport of copper through bulk liquid membrane using Janus Green as an anion carrier. Sep Purif Technol, 2002 26(2-3) 221-226. 

Cd, Cu, Zn Toxic heavy metals Calixcrown oligomers, Janus Green, LIX 860, 5-nonylsalicylaldoxime [149, 159-172] ... 

Janus Green B (3-dimethylamino-7-[4-dimethylaminoazo]-5-phenylphenazonium chloride)... 

Other phenothiazine dyes, such as methylene green (MG), brilliant cresyl blue (BCB), janus green (JG), toluidine blue (TB), and azure A (AA), can also be immobilized on Pt electrode surfaces by adsorption and the cyclic potential scan method used to prepare MB CMEs." The MG, BCB, JG, TB, and AA CMEs were all found to facilitate effectively the electrochemical reactions of redox proteins and the modified... 

Figure 8.6 U V-vis-NIR spectra of solutions of Janus Green B azo dye in NMP (A), and aqueous acidic solution (B), and resonance Raman spectra of Janus Green B azo dye in the solid state obtained at the indicated exciting radiations. The dye molecular structure is also shown. (Reprinted with permission from Macromolecules, Aniline Polymerization into Montmorillonite Clay A Spectroscopic Investigation of the Intercalated Conducting Polymer by G. M. do Nascimento, V. R. L. Constantino, R. Landers and M. L. A. Temperini, 37, 25. Copyright (2004) American Chemical Society)...

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