Transcription of 5. Gentian violet - Food and Agriculture Organization
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39 5. Gentian violet First draft prepared by Holly Erdely, Rockville, MD, USA and Pascal Sanders, Foug res, France Identity International Non-proprietary Name (INN): Gentian violet Synonyms: See Table IUPAC Names: (4-[4,4-bis(dimethylamino)benzhydryliden e]cyclohexa-2,5-dien-1-yl-idene-dimethyl ammonium chloride); Tris(4-(dimethylamino)phenyl)methylium chloride Chemical Abstract Service Number: 548-62-9 ( Gentian violet ) Structural formula of main components: See Table The structural identity, some major physical-chemical properties and characteristics of the trimethylphenyl dye, Gentian violet , its de-methylated derivatives, and its metabolite leucogentian violet are summarized in Table All information provided in Table is for the parent compound unless other
41 Photodegradation Triphenylmethane dyes are known to be quite light sensitive. Exposure of gentian violet to ultraviolet light results in demethylation, and in the presence of oxygen, oxidation.
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