2. Molecular Formula: C₁₇H₂₅N₃O₅S
3. Molecular Weight: 383.46

4. Appearance: white or yellowish crystalline powder
5. Assay: ≥98%.
6. Solubility: Confirms
7. Specific Rotation: -17-21
8. pH: 4.0 ~ 6.0
9. related substances: Single Impurity <0. 5%; Total Impurity <1.5%
10. MC and Acetone residue: MC≤ 0.06%, Acetone ≤ 0.5%
11. Water contents: 11.4% ~ 13.4%
12. Residue on ignition: ≤ 0.2%
13. Heavy Metal: ≤ 20ppm