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Sulphanilic Acid

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Sulphanilic Acid / CAS : 121-57-3

Appearance 4-aminobenzene sulfonic acid appears as white powder with faint purple tinge. Grayish-white flat crystals. UN -
HS 29214200 DG Class -
Synonyms Sulfanilic Acid; Aniline-4-Sulfonic Acid; 4-Sulfoaniline; P-Anilinesulfonic Acid; 4-Aminobenzenesulfonic Acid; 4-Aminobenzene Sulfonic Acid; 4 Amino Benzene Sulfonic Acid
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  • Assay 99%min,white
...
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Packing:
25 KG/Woven Bag; 600 KG/Jumbo Bag
Available: ISO9001, Process Flow, Audit, ROS, VQ, MOA
Manufacturer:
Hebei Honggang Chemical Co.,Ltd. Hebei, China
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Overview

Benefits

Passed SGS for its low contents of heavy metals and carcinogens.

Free Aniline lower than 100ppm which make the end product low subsidiary dyes and less impurities.

Snow white appearance with actual assay 99.5% by GC.

Specification

Items

Specification

Appearance

White to off white powder

Assay%

99.0% min

Aniline%

0.01% max

Insoluble%

0.03% max

Moisture%

0.30% max


Uses

1.Food Colors like Sunset Yellow, Tartrazine,etc.D&C Yellow 6 Food Color，

2. Optical Brightener Agent

3. dyestuff intermediates like 1-(4-Sulphophenyl)-3-Carboxy-5-Pyrazolone,1-(4-Sulphophenyl)-3-Methyl-5-Pyrazolone.

4. ACID DYSTUFFS

5.Celecoxib API

Picture

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Properties

Summary

Formula
C6H7NO3S
Molecular Mass
173.19000
Exact Mass
173.01500
PSA
88.77000
Logp
2.17750
IUPAC
4-aminobenzenesulfonic acid
SMILES
C1=CC(=CC=C1N)S(=O)(=O)O

Attribute classification

Matter Classification
organic
Category
API & Intermediate > Pharmaceutical Intermediates
Agrochemicals > Pesticide Intermediates
Dyestuffs and Pigments > Intermediates

Chemical and Physical Properties

Melting Point
>300 °C
Density
1.485
Boiling Point
500ºC
Appearance
4-aminobenzene sulfonic acid appears as white powder with faint purple tinge. Grayish-white flat crystals.
Acidity and Basicity
acidness

Export information

HS Code
29214200
Export Rebate
13%
Risk Code
R36/38-43-34
Safety Label
C,Xi

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