Vilanterol impurity 90 CAS 1027529-99-2
| CAS No. | 1027529-99-2 |
| Molecular Formula | C13H15NO4 |
| Molecular Weight | 249.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Vilanterol impurity 90 (C13H15NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 249.26 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Vilanterol impurity 90 (CAS 1027529-99-2), a pharmacopoeial impurity reference standard (molecular formula C13H15NO4, MW 249.26 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Vilanterol impurity 90 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 | C13H15NO4 |
| Molecular Weight | 249.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Related Vilanterol Standards
- Vilanterol Impurity 1 (CAS CATO-C4X-19351)
- Vilanterol Impurity 2 (CAS CATO-C4X-19352)
- Vilanterol Impurity 3 (CAS 452340-96-4)
- Vilanterol Impurity 4 (CAS CATO-C4X-19354)
- Vilanterol Impurity 41 (CAS 452339-73-0)
- Vilanterol Impurity 44 (CAS CATO-C4X-193544)
- Vilanterol Impurity 69 (CAS 2514942-86-8)
- Vilanterol Impurity 79 (CAS CATO-C4X-193579)
Recommended Standards
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- Cinchophen (CAS 132-60-5)
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- Fluralaner Impurity 5 (CAS 1171331-39-7)
- Clodronate Disodium EP Impurity A Pyridinium Salt (CAS 134757-52-1 (free acid))
- 1,4-Diphenylanthracene (CAS 1714-16-5)
- 3-Amino-N-(4-(N-methylacetamido)phenyl)benzamide (CAS 1020054-02-7)
- 2-((4-Chlorophenyl)sulfonyl)-3-hydrazinoprop-2-enenitrile (CAS 68342-62-1)
- 2-tert-Butyl-4-chloro-5-iodopyrimidine (CAS 118089-42-2)
- Adrenaline EP Impurity D（TFA salt） (CAS 317351-40-9（free base）)
- Tris(dibenzylideneacetone)diplatinum(0) (CAS 63782-74-1)
- (Asn5)-Delta-Sleep Inducing Peptide (H-2555.0005) (CAS 80064-67-1)
Why CATO?
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