Indacaterol Impurity 19 CAS 1454818-75-7
| CAS No. | 1454818-75-7 |
| Molecular Formula | C31H32N2O3 |
| Molecular Weight | 480.60 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.
Indacaterol Impurity 19 (CAS 1454818-75-7) is a certified pharmaceutical impurity reference standard with the molecular formula C31H32N2O3 and a molecular weight of 480.60 g/mol.
Structurally, Indacaterol Impurity 19 (C31H32N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 480.60 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).
As a certified reference material (CRM), Indacaterol Impurity 19 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 | C31H32N2O3 |
| Molecular Weight | 480.60 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
Related Indacaterol Standards
- Indacaterol Impurity 51 (CAS CATO-C4X-150051)
- Indacaterol Impurity 41 (CAS 312759-81-2)
- Indacaterol Impurity 49 (CAS CATO-C4X-150049)
- Indacaterol Impurity 52 (CAS CATO-C4X-150052)
- Indacaterol Impurity 8 (CAS 435273-75-9)
- Indacaterol Impurity 31 (CAS CATO-C4X-150031)
- Indacaterol Impurity 42 (CAS CATO-C4X-150042)
- Indacaterol impurity 84 (CAS CATO-C4X-150084)
Recommended Standards
- Faropenem Impurity 17 (CAS CATO-C4X-128917)
- N-(4-((4-(1H-Benzo[d]imidazol-2-yl)piperidin-1-yl)sulfonyl)phenyl)-3-cyclopentylpropanamide (CAS 886888-39-7)
- N-(3-cyano-4,5-dimethylthiophen-2-yl)-2-((3-cyano-4,6-diphenylpyridin-2-yl)thio)acetamide (CAS 444152-01-6)
- 5'-O-tert-Butyldiphenylsilyl-thymidine (CAS 101527-40-6)
- Trimebutine EP Impurity D (CAS 92414-09-0)
- Levosimendan Impurity 81 (CAS CATO-C4X-130881)
- Mirabegron Impurity 103 (CAS CATO-C4X-1032103)
- 2,2'-(1,2-Phenylenebis(oxy))bis(N-benzyl-N-phenylacetamide) (CAS 61595-77-5)
- Ethyl 4-(chloromethyl)-2-(propylimino)-2,3-dihydrothiazole-5-carboxylate (CAS 937598-40-8)
- 2-Fluoro-N-(4-fluoro-3-(prop-2-yn-1-yl)benzo[d]thiazol-2(3H)-ylidene)benzamide (CAS 865248-99-3)
- Ethyl 2,2-difluoro-3-hydroxy-3-methylbutanoate (CAS 168558-19-8)
- 5-(Chloromethyl)-3-methyl-1,2,4-oxadiazole (CAS 1192-81-0)
- 3-(Benzylamino)-4-nitrobenzonitrile (CAS 1147979-42-7)
- Peptide 74 (H-8545.0500) (CAS 132116-39-3)
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