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Para Amino Azo Benzene 4 Sulfonic Acid

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Para Amino Azo Benzene 4 Sulfonic Acid / CAS : 104-23-4

Appearance Orange to Brown Powder UN 0
HS 29270000 DG Class 0
Synonyms 4-[(4-Aminophenyl)Diazenyl]Benzenesulfonic Acid; 4-((4-Aminophenyl)Azo)-Benzenesulfonicaci; PASS; Para Amino Azo Benzene-4-Sulfonic Acid;; (Z)-4-((4-Aminophenyl) Diazenyl)Benzenesulfonic Acid; (4-Anilinoazo)Benzene-4-Sulfonic Acid Sodium Salt; 4-[(4'-Sulfophenyl)Azo]Aniline Sodium Salt; Para Amino Azo Benzene 4 Sulphonic Acid; Paabsa; 4'-Aminoazobenzene-4-Sulphonic Acid; 4-(4-Amino-Phenylazo)-Benzenesulfonic Acid Anion Sodium Salt; 4-((4-Aminophenyl)Diazenyl)Benzenesulfonic Acid; Para Aminoazobenzene-4-Sulfonic Acid (Paab4Sa); C.I. Food Yellow 6; 4'-Aminoazobenzene-4-Sulfonic Acid; 4-Aminoazobenzene-4'-Sulfonic Acid; Aminoazobenzenesulfonic Acid; P-Aminoazobenzene-4'-Sulfonic Acid
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Properties

Summary

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
Acidity and Basicity
acidness

Export information

HS Code
29270000
Export Rebate
13%
UN No.
0
DG-Class
0
Safety Label
Xi

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