103628-48-4 Sumatriptan succinate seller in China Sell high quality 103628-48-4 produced in China factory
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Sodium dimethyl 5-sulphonatoisophthalate
CAS:3965-55-7
Item |
Specifications |
Character |
Appearance: White or almost white powder. |
Solubility: Freely soluble in water, sparingly soluble in methanol, practically insoluble in methylene chloride. |
|
Identification |
Infrared absorption spectrophotometry: corresponds to Sumatriptan succinate CRS. |
PH |
4.5~5.3 |
Absorbance: |
Maximum 0.10 |
Related substances |
Impurity A: not more than 0.6 percent |
Impurity H: not more than 0.3 percent |
|
Impurity B,C or D: each impurity not more than 0.5 percent |
|
Impurity E or any other impurity: each impurities not more than 0.1 percent |
|
Total impurities: not more than 0.6 percent |
|
Water |
not more than 1.0 percent |
Sulphated ash |
not more than 0.1 percent |
Residual solvents |
Methanol:not more than 3000ppm |
Acetonitrite:not more than 100ppm |
|
Isopropyl Alcohol:not more than 100ppm |
|
Chloroform:not more than 60ppm |
|
Assay |
97.5 percent to102.0 percent (Anhydrous substance). |
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