dye|World dye variety

Name:C.I.Mordant Brown 44,C.I.58020

Molecular Structure: anthraquinones

C.I.Mordant Brown 44,C.I.58020,CAS 2243-71-2,285.21,C14H7NO6

Molecular Formula:C₁₄H₇NO₆

Molecular Weight: 285.21

CAS Registry Number:2243-71-2

Manufacturing Methods :  (a) 1,2-Dihydroxyanthraquinone dibenzoate nitrifying after hydrolysis; (b) 1,2-Dihydroxyanthracene-9,10-dione in sulfuric acid of nitration: (C) 1,2-Dihydroxyanthracene-9,10-dione in Arsenic acid, the presence of hemihydrate in sulfuric acid of nitration.

Properties and Applications: dark brown. Soluble in ethanol. In concentrated sulfuric acid for yellow red, dilution after yellow flocks.

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