USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $5.00-10.00 / Gram
USD $5.00-10.00 / Gram
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 |