Atosiban Impurity 59 CAS CATO-C4X-229359
| CAS No. | CATO-C4X-229359 |
| Molecular Formula | C44H69N11O12S2 |
| Molecular Weight | 1008.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Atosiban Impurity 59.
CATO supplies Atosiban Impurity 59 (CAS CATO-C4X-229359), a pharmacopoeial impurity reference standard (molecular formula C44H69N11O12S2, MW 1008.22 g/mol) used for the identification and quantification of trace impurities in APIs.
Atosiban Impurity 59 (C44H69N11O12S2) 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. 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C44H69N11O12S2 |
| Molecular Weight | 1008.22 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 Atosiban Standards
- Atosiban Impurity 99 (CAS CATO-C4X-229399)
- Atosiban Impurity 57 (CAS CATO-C4X-229357)
- Atosiban Impurity 58 (CAS CATO-C4X-229358)
- Atosiban Impurity 1 (CAS CATO-C4X-22931)
- Atosiban Impurity 3 (CAS CATO-C4X-22933)
- Atosiban Impurity 95 (CAS CATO-C4X-229395)
- Atosiban Impurity 5 (CAS 960411-86-3)
- Atosiban Impurity 96 (CAS CATO-C4X-229396)
Recommended Standards
- PG 106 (CAS 944111-22-2)
- 1,1,1,3,3,3-Hexafluoro-2-(3-((1,1,1,3,3,3-hexafluoro-2-(trifluoromethyl)propan-2-yl)oxy)-2,2-bis(((1,1,1,3,3,3-hexafluoro-2-(trifluoromethyl)propan-2-yl)oxy)methyl)propoxy)-2-(trifluoromethyl)propane (CAS 951260-68-7)
- Gly-OH9-Oxytocin (CAS 24346-32-5)
- Difelikefalin Impurity 101 (CAS CATO-C4X-3041101)
- Pidotimod Impurity 13 (CAS CATO-C4X-107813)
- Cefadroxil Impurity 19 (CAS CATO-C4X-122419)
- Drotaverin Impurity 45 (CAS 855199-57-4)
- 2'-Chlorothymidine (CAS 54898-34-9)
- N-(6-chloropyrazin-2-yl)acetamide (CAS 132453-63-5)
- 4-Formyl-2-methoxyphenyl 4-fluorobenzenesulfonate (CAS 387873-56-5)
- 3-Methyl-1-[1-(4-methyl-1,3-thiazol-2-yl)ethyl]-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 1341305-75-6)
- 1-(6-(Cyclopropylamino)pyrimidin-4-yl)piperidin-3-ol (CAS 1353974-07-8)
- 3-Aminobenzo[b]thiophene 1,1-dioxide hydrochloride (CAS 1195717-13-5)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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