| CAS No. | 1264-72-8 |
| Molecular Formula | Compound |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), Colistin Sulfate (Mixture of A and B compound) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Colistin Sulfate (Mixture of A and B compound) (CAS 1264-72-8), a certified reference material (molecular formula N/A, MW N/A g/mol) for analytical method development and quality control.
Colistin Sulfate (Mixture of A and B compound) is supplied as a fully characterized reference material; its structural identity, assigned purity, and stability data are documented in the batch-specific Certificate of Analysis (COA).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | Compound A: C53H100N16O13 (H2SO4) Compound B: C52H98N16O13 (H2SO4) |
| Molecular Weight | 2649.76 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 32 |
| Sulfur Atoms | 2 |