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Naphthol Yellow S

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Naphthol Yellow S / CAS : 846-70-8

Appearance Light yellow powder UN 0.0
HS 32041200 DG Class 0.0
Synonyms Naphthol Yellow S Hydrate; 5,7-Dinitro-8-Hydroxy-2-Naphthalenesulfonic Acid Sodium Salt; Acid Yellow S; Acid Yellow 1; Amacid Yellow S; 8-Hydroxy-5,7-Dinitro-2-Naphthalenesulfonic Acid Disodium Salt; Fd&Cyellowno1; Extd&Cyellowno.7; CI 10316; Disodium 5,7-Dinitro-8-Oxindonaphthalene ( Acid Ye
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Properties

Summary

Formula
C10H4N2Na2O8S
Molecular Mass
358.19200
Exact Mass
357.94800
PSA
180.28000
Logp
3.83130
IUPAC
disodium;5,7-dinitro-8-oxidonaphthalene-2-sulfonate
SMILES
C1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(C=C2[N+](=O)[O-])[N+](=O)[O-])[O-].[Na+].[Na+]

Attribute classification

Matter Classification
organic
Category
Cosmetics > Cosmetic Raw Materials
Dyestuffs and Pigments > Acid Dyes

Chemical and Physical Properties

Melting Point
>300℃
Appearance
Light yellow powder

Export information

HS Code
32041200
Export Rebate
0%
UN No.
0.0
DG-Class
0.0
Risk Code
11-34
Safety Label
Xi,C,F

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