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Janus Green B

Basic Violet 5 Dye / Dimethyl Safranine

Approx. Rs 55 / Piece

Basic Violet 5 / Dimethyl Safranine is the dye of violet color which is also known by name of basic violet 6bn. It finds application as electroplating chemical and has brown/greenish brown powder based appearance with dye content (Spectrophotometric)of > 70%. Its other properties include maximum absorption in water of 544-550 nm, absorptivity (A1%/1cm in water at ? max.) of > 700 and loss on drying (110° C) of < 5 %.

C.A.S. NO50205
Chemical FormulaC20H19N4Cl
Molecular Weight350.84 gm/mole
AppearanceDark green/brownish green powder
Solubility 0.1% (Aq.)Clear red Solution
Absorption Max (Aq.)? max.546-551 nm
Absorptivity (A1%/1cm Aq. at ? max.)> 800
Loss On Drying at 110° c (1 hr.)< 5%

Additional Information:

Janus Green B Dye

Janus Green B works as basic dye and vital stain that finds use in histology. These are also used for staining mitochondria where there is change in color of indicator janus green B depending upon the amount of oxygen present. The indicator is oxidized in blue color in presence of oxygen and shows pink color in case of absence of oxygen.

Chemical Name3-(Diethylamino)-7 [{4-dimethylamino)phenyl} azo ] -5-Phenylphenazinium Chloride
C.A.S. NO11050
Chemical FormulaC30H31ClN6
Molecular Weight511.07 gm/mole
Dye Content (Spectrophotometry)>65%
Absorption Max (50% Ethanol)651 - 678 nm
Absorptivity (A1%/1cm., in 50% Ethanol)> 550
Loss On Drying (110° c)< 5%

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    Devang Mehta


    Megha International

    Mandvi, Mumbai, Maharashtra, India

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