dye|World dye variety

Name:C.I.Direct Red 2,C.I.23500

Molecular Structure: Double azo class

C.I.Direct Red 2,C.I.23500,CAS 992-59-6,724.72,C34H26N6Na2O6S2,ACDI Purpurine 4B,Benzopurpurine 4B,Paper Red 4BS

Molecular Formula:C₃₄H₂₆N₆Na₂O₆S₂

Molecular Weight: 724.72

CAS Registry Number:992-59-6

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled.

Properties and Applications: red. Red powder. Soluble in water and red to red light for brown, soluble in soluble fiber element, ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid for red light blue, shallow green light blue for diluted, precipitation; In nitric acid solution for blue, yellow to brown. The dye solution to join strong hydrochloric acid for violet black, precipitation; Add thick sodium hydroxide solution for orange brown, have precipitation; Add 10% sodium hydroxide solution in red. Mainly used for cellulose fiber dyeing and printing.

List of Suppliers:

ACDI Direct Benzopurpurine 48 Extra H/C (Aakash Chemicals & Dyestuffs Inc)

ACDI Purpurine 4B Ex. Cone. (Aakash Chemicals & Dyestuffs Inc)

Atul Direct Red 4B ( Atul Limited )

Benzo Purpurine 4B(Classic Dyestuffs Inc)

Benzopurpine (United Chemie)

Benzopurpurine 4B ( KCA Ltd )

Benzopurpurine 4B (Monarch Dyestuffs Industries)

Bitamine Direct Benzo Purpurine 4B ( Bharat Texdyes Industries )

Dinamine Purpurine 4B (Dintex Dyechem Ltd)

Direct Benzopurpurin 4B (Amar Impex)

Direct Benzopurpurine 4B Cone. ( Global Colors Inc. )

Direct Purpurine 4B ( Golden Dyes Corpn (India) Pvt Ltd )

Direct Red 4B ( S A des Ets. Steiner )

Dyrite Benzopurpurine 4B Spec. ( Rite Industries Inc. )

Kayaku Benzopurpurine 4B (Nippon Kayak u Co Ltd)

Leadirect Benzopmpurine 4BS Ex. Cone. ( Leadertech Colors Inc. )

Paper Red 4BS (Yorkshire Group pic)

Purpurine 4B ( Multicrom SA )

Rifa Direct Benzopurpurine 4B(Rifa Industrial Co Ltd)