Vat Orange 4
Name:C.I.Vat Orange 4,C.I.59710
Molecular Structure: Pyranthrone class
C.I.Vat Orange 4,C.I.59710,CAS 1324-33-0,643.21,C30H11Br3O2,Vat Orange 4R
Molecular Formula:C30H11Br3O2
Molecular Weight: 643.21
CAS Registry Number:1324-33-0
Manufacturing Methods : (a) in Nitrobenzene or Chlorosulfonic acid in the 8,16-Pyranthrenedione brominated; (b) Bromination of 1-(2-Methyl-9,10-dioxoanthracene-1-yl)-2-methylanthracene-9,10-dione dehydration.
Properties and Applications: red light orange. Orange powder. Soluble in 1, 2, 3, 4-Tetrahydronaphthalene, Xylene is yellow, a green fluorescent, insoluble in Etanol. The strong sulfuric acid for blue, orange precipitation after diluted. Alkaline reduction leuco purple, acid reduction is orange leuco. Used for the cotton fabric dyeing as red orange, the direct to cotton good sex. Can be used for the discharge printing and dyeing, also can be used for silk dyeing. Unlike structure C.I. Pigment Red 216
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4-5 | 5 | 6-7 | 4 | 4-5 | 5 | 5 |
| AATCC | 4-5 | 5 | 5-6 | 4 | 4-5 | ||
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