scarlet red

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scarlet red

[′skär·lət ′red]
(organic chemistry)
CH3C6H4H:NC6H3CH3N:NC10H15OH A brown, water-insoluble powder, used as a dye in ointments. Also known as Biebrich red; scarlet.
References in periodicals archive ?
Tenders are invited for Supply of Chemicals -Picric Acid Solum, Diazo Reagent A, Diazo Reagent B, ISO Octane (2,2,4-Trimenthylpentane), Ethyl Acetate, Zinc Oxide Emplura, Isolation & Identification of oil soluble colour, i) Ammonia, All Solution of Reference colour:- Sudan-1, Sudan III, Sudan IV, Quinoline Yellow, Metanil Yellow, Methyl Orange (PH Indicator), Silica Gel G for TLC, Silver Nitrate Extra, Sucrose, Boric Acid Exrapure, Methanol, Buffer Tablet PH-4, Buffer Tablet PH-7,
Continuing violent hostility toward international humanitarian organizations in Darfur and greater Sudan IV.
Early studies reported the cuticularization of the surface of Psilotum gametophytes (Darnell-Smith, 1917; Holloway, 1939) and Bierhorst (1971) demonstrated lipid on their surface using Sudan IV.
The cut surfaces of these halves are tested with iodine (I2KI), and Sudan IV solutions.
Food Standards Agency investigators discovered that bottles of African palm oil have been contaminated with the potentially carcinogenic, banned dye Sudan IV.

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