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7,7'-(Carbonylbis(Azanediyl))Bis(4-Hydroxynaphthalene-2-Sulfonic Acid)

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7,7'-(Carbonylbis(Azanediyl))Bis(4-Hydroxynaphthalene-2-Sulfonic Acid) / CAS : 134-47-4

Appearance Dry grey to white powder UN -
HS 29222100 DG Class -
Synonyms 6,6'-Ureylene-Bis(1-Naphthol-3-Sulfonic Acid); 4,4'-Dihydroxy-7,7'-Ureylenedi(Naphthalene-2-Sulphonic Acid); 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-2-Naphthalenesulfonic Acid]; Phosgenated; N,N'-Bis(4-Hydroxy-2-Sulfonaphthalene-7-Yl)Urea; 7,7'-Ureylenebis(4-Hydroxy-2-Naphthalenesulfonic Acid); N,N'-Bis[6-(1-Naphthol-3-Sulfonic Acid)]Urea; 6,6'-Ureylenbis-1-Naphthol-3-Sulfonic Acid
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Overview

Uses

Properties

Summary

Formula
C21H16N2O9S2
Molecular Mass
504.49000
Exact Mass
504.03000
PSA
207.09000
Logp
5.84920
IUPAC
4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)carbamoylamino]naphthalene-2-sulfonic acid
SMILES
C1=CC2=C(C=C(C=C2C=C1NC(=O)NC3=CC4=CC(=CC(=C4C=C3)O)S(=O)(=O)O)S(=O)(=O)O)O

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Intermediates

Chemical and Physical Properties

Melting Point
86-88 °C
Density
1.798 g/cm3
Appearance
Dry grey to white powder
Acidity and Basicity
acidness

Export information

HS Code
29222100
Export Rebate
13

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