Direct Orange S

Direct Orange S Basic information
Product Name:Direct Orange S
Synonyms:Disodium 7,7'-(carbonyldiimino)bis[4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate];direct orange s;(3E)-4-oxo-7-[[(6E)-5-oxo-6-(phenylhydrazinylidene)-7-sulfonaphthalen-2-yl]carbamoylamino]-3-(phenylhydrazinylidene)naphthalene-2-sulfonic acid;2-Naphthalenesulfonic acid, 7,7-(carbonyldiimino)bis4-hydroxy-3-(phenylazo)-, disodium salt;Aizen Fast Oranges;Atul leather Orange DCS;Brilliant Direct Orange;Direct Brilliant Orange R
CAS:3626-36-6
MF:C33H22N6Na2O9S2
MW:756.67212
EINECS:222-838-8
Product Categories:Dyes and Pigments;Organics
Mol File:3626-36-6.mol
Direct Orange S Structure
Direct Orange S Chemical Properties
density 1.8[at 20℃]
vapor pressure 0Pa at 25℃
Water Solubility 9.81g/L at 20℃
LogP-2.215 at 20℃
CAS DataBase Reference3626-36-6(CAS DataBase Reference)
EPA Substance Registry SystemC.I. Direct Orange 26 (3626-36-6)
Safety Information
MSDS Information
Direct Orange S Usage And Synthesis
UsesDirect Orange 26 is an organic azo dye used with textiles. Being water soluble, Direct Orange 26 is a water pollutant, cleaned via reductive catalysis.
Flammability and ExplosibilityNonflammable
Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

ORANGE

DYEING DEPTH %

2

LIGHTING

3

SOAPING

3-4

PERSPIRATING

4

FRICTION(DRY)

4

FRICTION(WET)

3

Direct Orange S Preparation Products And Raw materials
Raw materialsSulfuric acid-->Sodium carbonate-->Sodium nitrite-->Aniline-->6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid)-->1-NAPHTHYLUREA
DIRECT ORANGE 118 DIRECT ORANGE 72 DIRECT ORANGE 1 DIRECT ORANGE 39 DIRECT ORANGE 26 Naphthalene Direct Orange 46 DIRECT ORANGE 34 DIRECT ORANGE 034 DIRECT ORANGE 29 Direct Orange S DIRECT ORANGE SE EX ORANGE ATLANTIC DIRECT ORANGE SE Direct Ethylenediaminetetraacetic acid disodium salt CHLOROPHOSPHONAZO III DIRECT ORANGE 55

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