On June 7, 2001, Read, David M. published a patent.Electric Literature of 4569-86-2 The title of the patent was Dye indicators for hydrogen peroxide sterilization of medical instruments. And the patent contained the following:
The present invention provides a hydrogen peroxide indicator (for sterilization of medical instruments) that includes a substrate on which is disposed an indicator composition that includes at least one of a select group of colorants. As a result of contact with hydrogen peroxide, the colorants change color, and even become colorless, thereby providing an indication of the presence of hydrogen peroxide. Thus, indicator compositions were prepared by mixing shellac binder solution containing 60% shellac in iso-PrOH , dispersing resin Rhoplex I 545 with a dye, e.g., Malachite green oxalate. After sterilization with H2O2, the dyes showed good contrast between the initial color and the color after exposure to H2O2. The experimental process involved the reaction of 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride(cas: 4569-86-2).Electric Literature of 4569-86-2
The Article related to dye indicator hydrogen peroxide sterilization medical, Pharmaceuticals: Other and other aspects.Electric Literature of 4569-86-2
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics