Indacaterol Impurity 41 CAS 312759-81-2
| CAS No. | 312759-81-2 |
| Molecular Formula | C31H34N2O3 |
| Molecular Weight | 482.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Indacaterol Impurity 41 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Indacaterol Impurity 41 (CAS 312759-81-2, C31H34N2O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Indacaterol Impurity 41 (C31H34N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 482.61 g/mol, it falls into the moderately-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).
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), Indacaterol Impurity 41 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 | C31H34N2O3 |
| Molecular Weight | 482.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Indacaterol Standards
- Indacaterol Impurity 49 (CAS CATO-C4X-150049)
- Indacaterol Impurity 52 (CAS CATO-C4X-150052)
- Indacaterol Impurity 8 (CAS 435273-75-9)
- Indacaterol Impurity 51 (CAS CATO-C4X-150051)
- Indacaterol Impurity 19 (CAS 1454818-75-7)
- Indacaterol Impurity 31 (CAS CATO-C4X-150031)
- Indacaterol impurity 84 (CAS CATO-C4X-150084)
- Indacaterol Impurity 42 (CAS CATO-C4X-150042)
Recommended Standards
- Blepharotriol (CAS 849590-42-7)
- Bis(2-isopropyl-5-methylcyclohexyl) ((2-fluorophenyl)(hydroxy)methyl)phosphonate (CAS 382149-58-8)
- 9,10-Bis[(1,1-biphenyl)-4-yl]anthracene (CAS 43069-36-9)
- 1-((4-Ethoxyphenyl)amino)-4-((3,3,5-trimethylcyclohexyl)amino)anthracene-9,10-dione (CAS 29205-96-7)
- Phenylephrine Impurity 77 (CAS CATO-C4X-146777)
- Indoxacarb Impurity 2 (CAS 135656-94-9)
- Finerenone Impurity 239 (CAS CATO-C4X-2880239)
- 5,5-Diisopropoxy-2-isopropyl-1,3,2-dioxaborinane (CAS 89561-45-5)
- 5-(2,4-Difluorobenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 1344049-83-7)
- 4-(Benzyloxy)benzenesulfonic acid (CAS 5950-16-3)
- 2-[2-(Pyridin-3-yl)pyrrolidin-1-yl]pyridine-3-carboxylic acid (CAS 904816-83-7)
- NH-bis(m-PEG8) (CAS 2055013-64-2)
- Ac-Ile-Glu-Pro-Asp-AMC (CAS 216757-33-4)
- Semaglutide impurity 251 (CAS CATO-C4X-2226251)
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