On March 19, 2015, Nakamura, Kimie published a patent.Product Details of 4569-86-2 The title of the patent was Corona treated film staining solution and visual evaluation method using the same. And the patent contained the following:
The solution contains a colorant having quaternary ammonium salt structure which had been removed and a solvent which can dissolve a substrate and is incompatible with water such as hexane, CHCl3, toluene and MEK. An example of the colorant is Methylene Violet 3Rax or Janus Green B. The experimental process involved the reaction of 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride(cas: 4569-86-2).Product Details of 4569-86-2
The Article related to staining agent colona discharge film methylene violet, Coatings, Inks, and Related Products: General and other aspects.Product Details of 4569-86-2
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics