Hebei Dongguang Honghao Dyes Chemical Co.,Ltd.

Direct Yellow 4

• Category :

  Dyestuffs and Pigments

• 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};

• CAS NO :

  3051-11-4

• EC NO :

  221-267-1

• Molecular Formula :

  C₂₆H₂₀N₄O₈S₂

• Molecular Weight :

  580.589

• Main Specifications :

• InChI :

  InChI=1/C26H20N4O8S2/c31-23-11-7-19(8-12-23)27-29-21-5-3-17(25(15-21)39(33,34)35)1-2-18-4-6-22(16-26(18)40(36,37)38)30-28-20-9-13-24(32)14-10-20/h1-16,29-30H,(H,33,34,35)(H,36,37,38)

• Packing :

  25KG

• 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

• Molecular Structure :