Direct Yellow 4
-
- Category :
Dyestuffs and Pigments
- CAS NO : 3051-11-4
- EC NO : 221-267-1
- Molecular Formula : C26H20N4O8S2
- Main Specifications :
- Synonyms : C.I. 24890;C.I. Direct Yellow 4 (VAN);C.I. Direct Yellow 4, disodium salt;C.I. Direct Yellow 4, disodium salt (8CI);disodium 2,2'-(E)-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonate};2,2'-(E)-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonic acid};2,2'-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonic acid};
Package: 25KG
Molecular Structure:
Product description:
Direct Yellow 4
{Color Index}: C.I.Direct Yellow 4
{CAS No.}: 3051-11-4
{Molecular Formula}: C26H18N4Na2O8S2
{Appearance}: Nacarat Even Powder
{Strength}: 100 %
{Shade Tone}: Approximately to the standard.
{Moisture %}: 5.0 Max
{Insoluble Substance in Water %}:1.0 Max
{Degree of Fineness (80 Mesh) %} : 5.0 Max
(Note: The Fineness is detected by the content of the screenings by 80 Mesh Sieve)
Test Type: AATCC
Colour fastness to acid: 3
Colour fastness to alkalis: 1
Colour fastness to high temperature: 2
Colour fastness to light: 5
Colour fastness to soaping: 1
Colour fastness to water: 3
{Packages}: 25kg or 40kg Iron Drum/ Fibre Drum/Carton, or meet the requirements of customers.
Payment: T/T or L/C
Minimum Order: 1000KGS
Origin: Dongguang County Honghao Dyeing Chemical Co.ltd, Hebei Province, China
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