[Leu3]-Atosiban CAS CATO-C4X-229375
| CAS No. | CATO-C4X-229375 |
| Molecular Formula | C43H67N11O12S2 |
| Molecular Weight | 994.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies [Leu3]-Atosiban (CAS CATO-C4X-229375), a certified reference material (molecular formula C43H67N11O12S2, MW 994.19 g/mol) for analytical method development and quality control.
Structurally, [Leu3]-Atosiban (C43H67N11O12S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 994.19 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 Leu Standards
- Atosiban (CAS 90779-69-4)
- Atosiban Impurity 13 (CAS CATO-C4X-229313)
- Atosiban Impurity 9 (CAS CATO-C4X-22939)
- Atosiban Impurity 5 (CAS 960411-86-3)
- Atosiban Impurity 96 (CAS CATO-C4X-229396)
- Atosiban Impurity 1 (CAS CATO-C4X-22931)
- Atosiban Impurity 3 (CAS CATO-C4X-22933)
- Atosiban Impurity 95 (CAS CATO-C4X-229395)
Recommended Standards
- [D-allo Ile3]-Atosiban (CAS CATO-C4X-229370)
- [D-allo-Thr4]-Atosiban (CAS CATO-C4X-229369)
- Difelikefalin Impurity 60 (CAS 1821319-29-2)
- [D-Ile3]-Atosiban (CAS CATO-C4X-229368)
- N-(2-Cyclohexyl-4-oxoquinazolin-3(4H)-yl)-2-phenylacetamide (CAS 309952-58-7)
- 4-Amino-2-chloro-1,3,5-triazine (CAS 7709-13-9)
- 2-(Imidazo[2,1-b]thiazol-3-yl)acetic acid (CAS 79190-64-0)
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- 3-(5-Fluoropyridin-3-yl)prop-2-enoic acid (CAS 118419-96-8)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com