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Acid Red 18

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Acid Red 18 / CAS : 2611-82-7

Appearance Crimson powder UN 0.0
HS 32041200 DG Class 0.0
Synonyms Cochineal Red A; Acid Scarlet 3R; Food Red No. 102; Trisodium 1-(1-Naphthylazo)-2-Hydroxynaphthalene-4',6,8-Trisulphonate; Ponceau 4r
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Properties

Summary

Formula
C20H11N2Na3O10S3
Molecular Mass
604.47300
Exact Mass
603.92700
PSA
241.69000
Logp
6.06870
IUPAC
trisodium;7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate
SMILES
C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C=CC4=CC(=CC(=C43)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+].[Na+]

Attribute classification

Matter Classification
organic
Category
Food(Feed) Additives > Color Fixative
Dyestuffs and Pigments > Acid Dyes

Chemical and Physical Properties

Appearance
Crimson powder

Export information

HS Code
32041200
Export Rebate
0%
UN No.
0.0
DG-Class
0.0

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