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Luoyang Dongyuan Chemical Co.,Ltd
Luoyang Dongyuan Chemical Co.,Ltd
27 YRS
Henan, China
Main Products:
DSD Acid / P-Nitrotoluene-O-Sulfonic acid / 4,4-Dinitrostilbene-2,2-Disulfonic acid / Aniline-2,5-Disulfonic Acid Monosodium Salt / Para Amino Azo Benzene 4 Sulfonic Acid
Henan, China
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Para Amino Azo Benzene 4 Sulfonic Acid / CAS 104-23-4
OVERVIEW
Packaging
25 KG/Woven Bag
Lead Time
14-30 days
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DESCRIPTION
Para Amino Azo Benzene 4 Sulfonic Acid
Chemical name: Para Amino Azo Benzene 4 Sulfonic Acid
Structural formula: 
Chemical formula: C12H11N3O3S
Molecular weight: 277.3
CAS NO.:104-23-4
Quality index:
Item | Index |
Appearance | Orange to Brown Powder |
Water | 1% Maxi |
Water Insolluble | 0.2% Maxi |
4-Aminoazobenzene-3’-sulfonic acid [102-23-8] | 1 % Maxi |
4-Aminoazobenzene [60-09-3] | < 0.1% |
Sulphate content | 2500 PPM Maxi |
Ash content | 0.1% Maxi |
Main use: it is an intermediate of dyes, can be used to manufacture Acid Yellow 6, Acid Red 151, Acid Red 7, Acid Red 142, Direct Red 152
Packing: 25kg plastic woven bag or upon clients' request.
Typical Properties
Summary
Carboxylic acid derivatives can be used as dye intermediates.
CAS No.
104-23-4
Formula
C12H11N3O3S
Molecular Mass
299.28100
Exact Mass
299.03400
PSA
116.32000
Logp
4.25030
IUPAC
4-[(4-aminophenyl)diazenyl]benzenesulfonic acid
SMILES
C1=CC(=CC=C1N)N=NC2=CC=C(C=C2)S(=O)(=O)O
Attribute classification
Matter Classification
organic
Category
Dyestuffs and Pigments > Intermediates
Chemical and Physical Properties
Melting Point
125-131 °C
Density
1.3764 (rough estimate)
Appearance
Orange to Brown Powder
Export information
HS Code
29270000
Export Rebate
13%
UN No.
0
DG-Class
0
Safety Label
Xi
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