[D-β-Asp5]-Atosiban CAS CATO-C4X-229337
| CAS No. | CATO-C4X-229337 |
| Molecular Formula | C43H66N10O13S2 |
| Molecular Weight | 995.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies [D-β-Asp5]-Atosiban (CAS CATO-C4X-229337), a certified reference material (molecular formula C43H66N10O13S2, MW 995.17 g/mol) for analytical method development and quality control.
[D-β-Asp5]-Atosiban (C43H66N10O13S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C43H66N10O13S2 |
| Molecular Weight | 995.17 g/mol |
| Purity | 97%+ |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 10 |
| Sulfur Atoms | 2 |
Recommended Standards
- Atosiban Impurity 13 (CAS CATO-C4X-229313)
- [D-Asp5]-Atosiban (CAS CATO-C4X-229343)
- Bis(9-chloro-1H,1H-perfluorononyl) sulphate (CAS 232602-72-1)
- Atosiban Impurity 9 (CAS CATO-C4X-22939)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com