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Vat Yellow 28

Name:C.I.Vat Yellow 28,C.I.69000

Molecular Structure: anthraquinones

C.I.Vat Yellow 28,C.I.69000,CAS 4229-15-6,427.41,C28H13NO4,Indanthren Yellow FFRK

C.I.Vat Yellow 28,C.I.69000,CAS 4229-15-6,427.41,C28H13NO4,Indanthren Yellow FFRK

Molecular Formula:C28H13NO4

Molecular Weight: 427.41

CAS Registry Number:4229-15-6

Manufacturing Methods : (a) Aluminum chloride with sulfuric acid or imine of N-(9,10-dioxo-9,10-dihydroanthracene-1-yl)-1-aminoanthracene-9,10-dione; (b) will nitrobenzene 1-Nitro-2-chloroanthraquinone and copper heated and then reduced to the 1,1′-Diamino-2,2′-bianthraquinone, then sulfuric acid or chlorine zinc cyclization; (C) In nitrobenzene using copper processing 2-Bromo-1,1′-iminodianthraquinone.

Properties and Applications:  red light yellow. Soluble in 1, 2, 3, 4-Tetrahydronaphthalene, Xylene. The strong sulfuric acid for palm red light, after diluted orange precipitation; In alkaline solution for insurance powder red brown; In the acidic insurance powder solution for yellow brown, a green fluorescent.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 4-5 5 6 4-5 4-5 5 5
AATCC 4 5 6-7 4 4-5

List of Suppliers:

Indanthren Yellow FFRK( Farbwerke vorm. Meister Lucius &Brtining )


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