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Lianyungang Lion chemicals co., Ltd
Lianyungang Lion chemicals co., Ltd
18 YRS
Jiangsu, China
Main Products:
2-Formylbenzenesulfonic Acid Sodium Salt / DSD Acid / Sodium 4-Formylbenzenesulfonate / 4-Nitrotoluene-2-Sulfonic Acid
Jiangsu, China
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DSD Acid / CAS 81-11-8
OVERVIEW
Uses
Packaging
500 KG/Jumbo Bag
Lead Time
In Stock
Max Capacity
13000 MT/Year
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DESCRIPTION
4,4’-Diaminostilbene-2,2’diasulfonic Acid
Chemical name: | 4,4’-Diaminostilbene-2,2’diasulfonic acid (DSD ACID) |
Structural formula: |
|
Molecular formula: | C14H14N2O6S2 |
Molecular weight : | 370.4 |
CAS number : | 81-11-8 |
Application: | |
Used in the synthesis of fluorescent brightening agent, Chrysophenine G , Sun yellow and Pesticide. Insecticide | |
Specification:
Appearance | Yellowish powder | Yellowish paste |
Assay (Amino value) | =95% | = 60% |
Assay (HPLC) | = 95% | = 95% |
Content of DND | = 0.5% | = 0.5% |
Content of alkaline undissolved matter | = 0.1% | = 0.1% |
Ash content | = 2.50% | = 2.50% |
Gardner Color | = 12 | = 12 |
Typical Properties
Summary
It can be used in the production of dyes, fluorescent brighteners and other intermediates, and can be used as insecticides.
CAS No.
81-11-8
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
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.
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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