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Phenylhydrazine-4-sulfonic acid 4-Hydrazinobenzenesulfonic acid 98-71-5
Product name |
4-Hydrazinobenzenesulfonic acid |
Synonyms |
Phenylhydrazine-4-sulfonic acid |
CAS No. |
98-71-5 |
EINECS |
202-694-2 |
Molecular formula |
C6H8N2O3S |
Molecular weight |
188.20 |
Appearance |
Yellow powder |
Melting point |
285 ºC |
Density |
1.583g/cm3 |
Assay |
99% HPLC |
Packing |
1Kg/bag;25Kg/drum or as demand |
Application |
Pharmaceutical Intermediates |
Technique index sign name |
Qualified targets |
Results of inspection |
|
Inherent content (%) |
≥88 |
89.80 |
|
Degree of hydrolysis (%) |
25-30 |
27.50 |
|
Molecular weight (million) |
≥24 |
24.56 |
|
Dissolving time (h) |
≤2.0 |
≤2.0 |
|
Granularity |
Granule content less than 0.15 mm, % |
≤5.0 |
4.0 |
Granule content more than 1.0 mm, % |
≤5.0 |
2.0 |
|
conclusion |
Qualified |
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