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        PNTOSA (121-03-9)

        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.





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