Desmopressin Impurity 35 CAS CATO-C4X-221535
| CAS No. | CATO-C4X-221535 |
| Molecular Formula | C138H192N42O36S6 |
| Molecular Weight | 3207.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Desmopressin Impurity 35 (CAS CATO-C4X-221535), a pharmacopoeial impurity reference standard (molecular formula C138H192N42O36S6, MW 3207.65 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Desmopressin Impurity 35 (C138H192N42O36S6) 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 64.0, corresponding to approximately 64 ring(s) or double-bond equivalent(s). With a molecular weight of 3207.65 g/mol, it falls into the high-molecular-weight range. 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).
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 | C138H192N42O36S6 |
| Molecular Weight | 3207.65 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) | 64.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 42 |
| Sulfur Atoms | 6 |
Related Desmopressin Standards
- Desmopressin Impurity 44 (CAS CATO-C4X-221544)
- Desmopressin Impurity 28 (CAS CATO-C4X-221528)
- Desmopressin Impurity 32 (CAS CATO-C4X-221532)
- Desmopressin Impurity 45 (CAS 2251748-64-6)
- Desmopressin Impurity 46 (CAS CATO-C4X-221546)
- Desmopressin Impurity 39 (CAS CATO-C4X-221539)
- Desmopressin Impurity 40 (CAS CATO-C4X-221540)
- Desmopressin Impurity 31 (CAS CATO-C4X-221531)
Recommended Standards
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