[L-allo-Ile3]-Atosiban CAS CATO-C4X-229365
| CAS No. | CATO-C4X-229365 |
| Molecular Formula | C43H67N11O12S2 |
| Molecular Weight | 994.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of [L-allo-Ile3]-Atosiban (C43H67N11O12S2) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies [L-allo-Ile3]-Atosiban (CAS CATO-C4X-229365), a certified reference material (molecular formula C43H67N11O12S2, MW 994.19 g/mol) for analytical method development and quality control.
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.
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 | C43H67N11O12S2 |
| Molecular Weight | 994.19 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 11 |
| Sulfur Atoms | 2 |
Related L Standards
- [L-allo-Thr4]-Atosiban (CAS CATO-C4X-229366)
- [D-allo-Thr4]-Atosiban (CAS CATO-C4X-229369)
- [D-allo Ile3]-Atosiban (CAS CATO-C4X-229370)
- allo-3α-Tetrahydro cortisol 21-O-β-D-glucuronide (CAS 131061-62-6)
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Recommended Standards
- [D-Thr4]-Atosiban (CAS CATO-C4X-229364)
- [D-Orn8]-Atosiban (CAS CATO-C4X-229363)
- [D-Pro7]-Atosiban (CAS CATO-C4X-229367)
- [L-Tyr(Et)2]-Atosiban (CAS CATO-C4X-229334)
- 4-Chloro-1H-pyrazolo[3,4-β]pyridine (CAS 29274-28-0)
- 2-Phenoxyquinoxaline (CAS 52598-53-5)
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