Dalilesen Impurity 3 CAS 1788104-74-4
| CAS No. | 1788104-74-4 |
| Molecular Formula | C18H26ClN3O3 |
| Molecular Weight | 367.87 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 367.87 g/mol gives Dalilesen Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dalilesen Impurity 3 (CAS 1788104-74-4) is a certified pharmaceutical impurity reference standard with the molecular formula C18H26ClN3O3 and a molecular weight of 367.87 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Dalilesen Impurity 3 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 367.87 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Dalilesen Impurity 3 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H26ClN3O3 |
| Molecular Weight | 367.87 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dalilesen Standards
- Dalilesen Impurity 58 (CAS CATO-C4X-301058)
- Dalilesen impurity 45 (CAS CATO-C4X-301045)
- Dalilesen Impurity 32 (CAS CATO-C4X-301032)
- Dalilesen impurity 27 (CAS CATO-C4X-301027)
- Dalilesen Impurity 6 (CAS 1788104-75-5)
- Dalilesen Impurity 61 (CAS CATO-C4X-301061)
- Dalilesen impurity 40 (CAS CATO-C4X-301040)
- Dalilesen Impurity 59 (CAS CATO-C4X-301059)
Recommended Standards
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- Gadoxetate Impurity 34 (CAS CATO-C4X-261834)
- Tolvaptan Impurity 31 (CAS 1580889-21-9)
- Mivacurium chloride Impurity 23 (CAS 48059-97-8)
- Methyl (r)-3-amino-3-(5-bromothiophen-2-yl)propanoate (CAS 1213495-32-9)
- 6,7-dimethoxyquinoxalin-2(1H)-one (CAS 5739-98-0)
- 3-({6-chloro-1H-pyrazolo[3,4-b]pyrazin-1-yl}(²H₂)methyl)pyridine (CAS 2888709-46-2)
- Metoclopramide Impurity 17 (CAS CATO-C4X-141517)
- 3-(Azetidin-3-yl)propanenitrile (CAS 1205749-29-6)
- 4,4,5,5-Tetramethyl-2-(2-(3-(trifluoromethyl)benzyl)benzo[b]thiophen-7-yl)-1,3,2-dioxaborolane (CAS 1207970-76-0)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
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