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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.