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1-Diazo-2-Naphthol-4-Sulfonic Acid

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1-Diazo-2-Naphthol-4-Sulfonic Acid / CAS : 887-76-3

Appearance Yellow needle like crystal or paste UN 2925
HS 29270000 DG Class 4.1
Synonyms 1,2-Naphthoxydiazo-4-Sulfonic Acid; 1,2-Naphthoxydiazo-4-Sulfo
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Properties

Summary

Formula
C10H8N2O4S
Molecular Mass
252.24700
Exact Mass
252.02000
PSA
120.37000
Logp
2.25176
IUPAC
1,2-Naphthoxydiazo-4-sulfonic acid
SMILES
C1=CC=C2C(=C1)C(=CC(=C2[N+]#N)O)S(=O)(=O)[O-]

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Intermediates

Chemical and Physical Properties

Melting Point
160 °C
Density
1.5366
Boiling Point
160°C
Appearance
Yellow needle like crystal or paste
Acidity and Basicity
acidness

Export information

HS Code
29270000
Export Rebate
13%
UN No.
2925
DG-Class
4.1
Risk Code
R5-11-34
Safety Label
F,C

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