| Items | Standard |
| Appearance | A white or almost white powder |
| Solubility | freely soluble in water, insoluble in ethanol |
| Identification |
|
| Appearance of solution | Solution S is clear and colourless |
| pH | 3.8~5.6 |
| Specific optical rotation | +10.0~+14.0 |
| Impurity A | ≤1.0% |
| Impurity D | ≤4.0% |
| Impurity E | ≤1.0% |
| Any other Impurity | ≤1.0% |
| Total Impurities | ≤6.0% |
| Water | 12.0%~16.5% |
| Sulfated ash | ≤1.0% |
| Bacterial endotoxins | <0.17IU/mg |
|
Assay (On the anhydrous basis)
It contains C14H26N2O11S |
(4R)Dihydrospectinomycin sulphate:≤2.0%
Sum of contents of spectinomycin sulphate and (4R)Dihydrospectinomycin sulphate: 93.0%~102.0% |
| mode of transportation | ||
| By Air | By Express | By Sea |
| suitable for >50 | suitable for sampple order or <50 | suitable for >300 |
| Fast:3-7 days | Fast:3-10 days | Fast: 7-45 days |
| lower than the express cost | high shipping cost | lowest cost |
1:Can I get some samples before bulk order?