| CAS No.: |
111974-72-2 |
| Molecular formula: |
C21H25N3O4S 1/2C4H4O4 |
| Appearance: |
Almost white crystalline powder |
| Identification: |
IR, NMR spectrum match with R.S |
| Melting point: |
172°C to 176°C |
| PH: |
5.0-6.0 |
| Loss on drying: |
NMT 0.5% |
| Residue on ignition: |
NMT0.10%; |
| Heavy Metals: |
NMT 10ppm; |
| Residual solvents: |
Matches with ICH requirement. |
| Related substance: |
Any individual impurity: NMT 0.10%; |
| (by HPLC)Total impurities: |
NMT 0.5%. |
| Assay: |
NMT 99.5% |
