Ensifentrine Dimer Impurity 1 CAS 3067475-16-2
| CAS No. | 3067475-16-2 |
| Molecular Formula | C51H58N8O7 |
| Molecular Weight | 895.06 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ensifentrine Dimer Impurity 1 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.
As a process- or degradation-related impurity, Ensifentrine Dimer Impurity 1 (CAS 3067475-16-2, C51H58N8O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Ensifentrine Dimer Impurity 1 (C51H58N8O7) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C51H58N8O7 |
| Molecular Weight | 895.06 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) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Nitrogen Atoms | 8 |
Related Ensifentrine Standards
- Ensifentrine impurity 15 (CAS CATO-C4X-335315)
- Ensifentrine impurity 17 (CAS 3046226-90-5)
- Ensifentrine impurity 18 (CAS CATO-C4X-335318)
- Ensifentrine impurity 39 (CAS CATO-C4X-335339)
- Ensifentrine impurity 6 (CAS 298680-38-3)
- Ensifentrine impurity 19 (CAS CATO-C4X-335319)
- Ensifentrine impurity 20 (CAS CATO-C4X-335320)
- Ensifentrine impurity 14 (CAS CATO-C4X-335314)
Recommended Standards
- Ledipasvir D6 (CAS 2050041-12-6)
- β-Bungarotoxin (CAS 12778-32-4)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
- Brevetoxin B (CAS 79580-28-2)
- Indapamide Impurity 33 (CAS 22160-13-0)
- Atenolol Impurity 20 (CAS CATO-C4X-154920)
- Glumetinib Impurity 2 (CAS CATO-C4X-32592)
- [(2-Bromophenyl)methyl](butyl)amine hydrochloride (CAS 90389-55-2)
- 1-(1,3-Benzodioxol-5-yl)cyclopropanecarbonitrile (CAS 33522-14-4)
- 9-Cyclohexyl-9-methyl-9H-fluorene (CAS 82571-47-9)
- tert-Butyl ((6-acetyl-4-formylpyridin-2-yl)methyl)carbamate (CAS 1393530-64-7)
- 3-[(2,3-dimethoxyphenyl)methylidene]-1H,2H,3H-cyclopenta[b]quinoline-9-carboxylic acid (CAS 750617-49-3)
- 6-Ethylpyridin-2-amine (CAS 21717-29-3)
- Insulin aspart (CAS 116094-23-6)
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