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Acid Red 99

Name:C.I.Acid Red 99,C.I.23285

Molecular Structure: Double azo class

C.I.Acid Red 99,C.I.23285,CAS 3701-40-4,726.69,C34H24N4Na2O8S2,Acid Red RS,Fast Red RX,Red RM,Fast Red GRS

C.I.Acid Red 99,C.I.23285,CAS 3701-40-4,726.69,C34H24N4Na2O8S2,Acid Red RS,Fast Red RX,Red RM,Fast Red GRS

Molecular Formula:C34H24N4Na2O8S2

Molecular Weight: 726.69

CAS Registry Number:3701-40-4

Manufacturing Methods : 4-(4-Amino-2-methylphenyl)-3-methylbenzenamine double nitriding, respectively with the 4-Hydroxynaphthalene-2,7-disulfonic acid and Naphthalen-2-ol coupling.

Properties and Applications: red. Soluble in water for red, soluble in ethanol for orange. The strong sulfuric acid for dark purple, pink is diluted. In water solution to join strong hydrochloric acid for red; Add thick sodium hydroxide solution for orange brown.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5 3-4 4-5 4-5 3-4 4-5 4-5 5
AATCC 4-5 4 4 5 3-4 3-4 5 5

List of Suppliers:

Acid Red RS 125% ( Global Colors Inc. )

Akacid Red RS 125%(Aakash Chemicals & Dyestuffs Inc)

Best Acid Milling Red FRS( Oriental Giant Dyes and Chemical Ind Corp )

Dynacid Red RS( Dynamic Industries Ltd )

Milling Fast Red RX( Multicrom SA )

Multicuer Red BRX( Multicrom SA )

Nylon Red RM 125%(Classic Dyestuffs Inc)

Shikiso Acid Red RS( Kaseihin Kogyo Kyokai )

Triacid Fast Red GRS (Chemische Fabriek Triade BV)


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