PNTOSA (121-03-9)
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Chemical name: p-nitrotoluene-o-sulfonic acid
Structural formula:
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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.