| Product name | Carbetocin |
| Product No. | 600602 |
| Sequence | Butyryl-Tyr(Me)-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2(Sulfide bond between Butyryl-4-yl and Cys) |
| Appearance | White fluffy powder |
| Solubility | Soluble in water, 1% acetic acid |
| Specific Optical Rotation | （-71°to -81°） （C=0.2%; 1% acetic acid v/v, T=25 o C) |
| Water | ≤6.0% |
| Amino acid analysis | Asp:0.9-1.1 |
| Glu:0.9-1.1 | |
| Gly:0.9-1.1 | |
| Pro:0.9-1.1 | |
| Pro:0.9-1.1 | |
| Tyr:0.7-1.1 | |
| Ile:0.9-1.1 | |
| Leu:1.0-2.0 ys is present. No more than the traces of the other amino acids are present. | |
| Related substances | Any impurity: NMT 0.5% Total impurity: NMT 2.0% |
| Assay | 95.0%-105.0% (anhydrous and acetic acid free substance) |
| Acetate acid | ≤5.0% |
| MS | 988.16 ± 1.0 |
| Bacterial endotoxins | <10IU/mg |
| Residual solvent | Methanol:NMT 3000ppm Acetonitrile:NMT 410ppm |
| Storage Condition | In an air tight container, protected from light at temperature 2-8℃. |
Captope oxytocin for selective epidural or spinal anesthesia after caesarean section to prevent uterine contraction fatigue and postpartum hemorrhage.