Vancomycin is a branched tricyclic glycosylated nonribosomal peptide produced by the Actinobacteria species Amycolatopsis orientalis (formerly designated Nocardia orientalis).
| Items | Requirements | Results |
| Description | White or almost white crystalline powder | Complies |
| Identification | Positive | Positive |
| Specific Rotation | - 50.0~- 53.5° | -51.1° |
| Loss on drying | ≤2.0% | 0.2% |
| Limit of norepinephrie | ≤2.0% | N.D |
| Limit of adrenalone | A310nm0.2 | 0.03 |
| Residue on ignition | ≤0.1% | 0.03% |
| Assay (Dried) | 97.0-100.5% | 99.5% |