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.