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8-Hydroxynaphthalene-1,6-Disulfonic Acid

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8-Hydroxynaphthalene-1,6-Disulfonic acid / CAS : 117-43-1

Appearance - UN 3265
HS 29089990 DG Class 8
Synonyms 1-Naphthol-3,8-Disulfonic acid; Disulfo Acid E; Andresen's Acid; Epsilon acid; 4-Hydroxy-2,5-Naphthalenedisulfonic acid
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Properties

Summary

Formula
C10H8O7S2
Molecular Mass
304.29600
Exact Mass
303.97100
PSA
145.73000
Logp
3.20040
IUPAC
8-hydroxynaphthalene-1,6-disulfonic acid
SMILES
C1=CC2=CC(=CC(=C2C(=C1)S(=O)(=O)O)O)S(=O)(=O)O

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Dye Intermediates

Chemical and Physical Properties

Density
1.002 g/mL at 25 °C
Boiling Point
111 °C (0.2 mmHg)
Flash Point
>230 °F
Acidity and Basicity
acidness

Export information

HS Code
29089990
Export Rebate
13%
UN No.
3265
DG-Class
8
Risk Code
R34; R36/37
Safety Label
C

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