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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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P-Nitrotoluene-O-Sulfonic acid / CAS 121-03-9
OVERVIEW
Packaging
25 KG/Woven Bag
Lead Time
14-30 days
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Less than 1KG required
DESCRIPTION
P-Nitrotoluene-O-Sulfonic acid
Chemical name: P-nitrotoluene-o-sulfonic acid
Structural formula: 
Chemical formula: C7H11NO7S
Molecular weight: 253
CAS NO.:121-03-9
Quality index:
Item | Index |
(1)Appearance | milk white crystal |
(2)Assay (Gross sample) | ≥ 80.0% |
(3)Moisture (Gross sample) | ≤ 5.0% |
(4)Free acid (Gross sample) | ≤ 1.0% |
(5)Insolubles(Gross sample) | ≤ 0.1% |
Main use: it is an intermediate of dyes, can be used to manufacture Yellow R.
Packing: 25kg plastic woven bag or upon clients' request.
Typical Properties
Summary
The product is a fluorescent brightener and dye intermediate.
CAS No.
121-03-9
Formula
C7H7NO5S
Molecular Mass
217.19900
Exact Mass
217.00400
PSA
108.57000
Logp
2.75390
IUPAC
2-methyl-5-nitrobenzenesulfonic acid
SMILES
CC1=C(C=C(C=C1)[N+](=O)[O-])S(=O)(=O)O
Attribute classification
Matter Classification
organic
Category
Dyestuffs and Pigments > Intermediates
Auxiliary > Fluorescent Brightener
Auxiliary > Fluorescent Brightener
Chemical and Physical Properties
Melting Point
135°C
Density
1.547g/cm3
Boiling Point
500ºC
Appearance
Yellow powder
Export information
HS Code
29049900
Export Rebate
13%
UN No.
3261
DG-Class
0
Risk Code
R34
Safety Label
Xn
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