Difelikefalin Impurity 4 CAS 1173664-52-2
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1173664-52-2 |
| Molecular Formula | C21H31N3O4 |
| Molecular Weight | 389.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Difelikefalin Impurity 4 (CAS 1173664-52-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H31N3O4. Molecular weight: 389.49 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H31N3O4 |
| Molecular Weight | 389.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
Related Difelikefalin Standards
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- Difelikefalin Impurity 95 (CAS CATO-C4X-304195)
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Recommended Standards
- Nemonoxacin Impurity 64 (CAS CATO-C4X-312864)
- Nemonoxacin Impurity 70 (CAS 1203651-05-1)
- Axitinib-d3 (CAS 1126623-89-9)
- Olaparib Impurity 32 (CAS CATO-C4X-113532)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
- 1-(4-Chlorophenyl)propan-1-amine hydrochloride (CAS 856629-61-3)
- 2-Bromo-5,6-dihydro-4H-cyclopenta[b]thiophen-3-amine (CAS 1602158-73-5)
- (2R,3R,4S,5R)-2-(6-Amino-2-(octylthio)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 50823-28-4)
- tert-Butyl (5-(1-formylpiperidin-2-yl)pyridin-2-yl)carbamate (CAS 1352493-62-9)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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