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2-Naphthol-3,6-Disulfonic Acid Disodium Salt

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2-Naphthol-3,6-Disulfonic Acid Disodium Salt / CAS : 135-51-3

Appearance White to gray yellow powder UN -
HS 29089990 DG Class -
Synonyms 3-Hydroxy-2,7-Naphthalenedisulfonic Acid Disodium Salt; Disodium 2-Naphthol-3,6-Disulfonate; R Salt; R Acid Disodium Salt; Sodium 3-Hydroxynaphthalene-2,7-Disulfonate; Disodium 3-Hydroxy-2,7-Naphthalenedisulfonate
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Properties

Summary

Formula
C10H6Na2O7S2
Molecular Mass
348.26000
Exact Mass
347.93500
PSA
151.39000
Logp
2.51520
IUPAC
disodium;3-hydroxynaphthalene-2,7-disulfonate
SMILES
C1=CC(=CC2=CC(=C(C=C21)O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Attribute classification

Matter Classification
organic
Category
Auxiliary > Paper Additives
Dyestuffs and Pigments > Intermediates
Food(Feed) Additives > Colorant

Chemical and Physical Properties

Melting Point
107ºC
Appearance
White to gray yellow powder

Export information

HS Code
29089990
Export Rebate
13%
Risk Code
R36/38
Safety Label
Xi

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