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Dsd Acid

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DSD Acid / CAS : 81-11-8

Appearance 4,4'-diamino-2,2'-stilbenedisulfonic acid appears as odorless yellowish microscopic needles or cream-colored powder. UN 2583
HS 29215900 DG Class -
Synonyms 4,4'-Diamino-Stilbene-2,2'-Disulfonic acid; 4,4‘-Diamino-2,2‘-Stilbenedisulfonic acid; Tinopalbhs; Dasda; 4,4'-Diaminostilbene-2,2'-Disulphonic acid; DASD; Amsonic ACID; Flavonicacid; 2,2'-(1,2-Ethenediyl)bis(5-Amino)Benzenesulfonic acid; Amsomicacid; DAS
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Overview

Uses

Properties

Summary

Formula
C14H14N2O6S2
Molecular Mass
370.40100
Exact Mass
370.02900
PSA
177.54000
Logp
4.83880
IUPAC
5-amino-2-[(E)-2-(4-amino-2-sulfophenyl)ethenyl]benzenesulfonic acid
SMILES
C1=CC(=C(C=C1N)S(=O)(=O)O)C=CC2=C(C=C(C=C2)N)S(=O)(=O)O

Attribute classification

Matter Classification
organic
Category
Auxiliary > Other Auxiliary Agent
Dyestuffs and Pigments > Intermediates

Chemical and Physical Properties

Melting Point
300 °C
Density
1.662 g/cm3
Appearance
4,4'-diamino-2,2'-stilbenedisulfonic acid appears as odorless yellowish microscopic needles or cream-colored powder.
Acidity and Basicity
acidness

Export information

HS Code
29215900
Export Rebate
13%
UN No.
2583
Risk Code
R34-22-36/37/38-20/21/22
Safety Label
C,Xn

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