Product

Direct Orange S

CAS No.：3626-36-6

Other grades of this product :

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 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 Reference	3626-36-6(CAS DataBase Reference)
EPA Substance Registry System	C.I. Direct Orange 26 (3626-36-6)

Safety Information

MSDS Information

Direct Orange S Usage And Synthesis

Uses

Direct 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 Explosibility

Nonflammable

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 materials

Sulfuric acid-->Sodium carbonate-->Sodium nitrite-->Aniline-->6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid)-->1-NAPHTHYLUREA

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