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7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt

Basic information Safety Supplier Related

7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt Basic information

Product Name:
7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt
Synonyms:
  • 7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt
  • C.I.35790
  • C.I.Direct Red 32
  • 1,3-Naphthalenedisulfonic acid, 7,7'-[carbonylbis[imino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo-4,1-phenyleneazo]]bis-, hexasodium salt (9CI)
  • C.I.Direct Red 32:C.I.35790
  • Direct Red 32
CAS:
33448-68-9
MF:
C53H36N10O21S6.6Na
MW:
0
Mol File:
33448-68-9.mol
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7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt Usage And Synthesis

Preparation

7-Aminonaphthalene-1,3-disulfonic acid diazo, with (Phenylamino)methanesulfonic acid?coupling, and then a sulfonic acid hydrolysis off base, its product (2 Moore) diazo, coupled with N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea.

Properties and Applications

blue-ray red.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
AATCC 4 4-5 4 2 4

7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] saltSupplier

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7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt(33448-68-9)Related Product Information