| CAS No. | 43157-23-9 |
| Molecular Formula | C46H65N13O11S2 |
| Molecular Weight | 1040.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies (Deamino-Cys1,Val4,D-Arg8)-Vasopressin (CAS 43157-23-9), a certified reference material (molecular formula C46H65N13O11S2, MW 1040.22 g/mol) for analytical method development and quality control.
The molecular framework of (Deamino-Cys1,Val4,D-Arg8)-Vasopressin (C46H65N13O11S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (Deamino-Cys1,Val4,D-Arg8)-Vasopressin 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.
| Molecular Formula | C46H65N13O11S2 |
| Molecular Weight | 1040.22 g/mol |
| Purity | >90% |
| 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.) | 1969 |
| Nitrogen Atoms | 13 |
| Sulfur Atoms | 2 |