Formoterol impurity 129 CAS CATO-C4X-1525129
| CAS No. | CATO-C4X-1525129 |
| Molecular Formula | C23H34N2O5 |
| Molecular Weight | 418.53 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 418.53 g/mol gives Formoterol impurity 129 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Formoterol impurity 129 (CAS CATO-C4X-1525129) is a certified pharmaceutical impurity reference standard with the molecular formula C23H34N2O5 and a molecular weight of 418.53 g/mol.
Structurally, Formoterol impurity 129 (C23H34N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 418.53 g/mol, it falls into the moderately-high-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.
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.
CATO manufactures Formoterol impurity 129 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H34N2O5 |
| Molecular Weight | 418.53 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Formoterol Standards
- Formoterol impurity 136 (CAS 1799961-38-8)
- Formoterol impurity 38 (CAS CATO-C4X-1525138)
- Formoterol Impurity 26 (CAS 250336-08-4)
- Formoterol Impurity 86 (CAS CATO-C4X-152586)
- Formoterol impurity 128 (CAS CATO-C4X-1525128)
- Formoterol EP Impurity H (Enantiomer Mixture) (CAS CATO-C4X-15258)
- rac-Formoterol EP Impurity H (Mixture) (CAS 2514947-17-0)
- Formoterol Impurity 101 (CAS CATO-C4X-1525101)
Recommended Standards
- Ketoprofen Impurity 50 (CAS 157740-16-4)
- Selexipag Impurity 17 (CAS 475086-28-3)
- Palosuran (CAS 540769-28-6)
- Nemonoxacin impurity 12 (CAS 2797066-53-4)
- Ilaprazole impurity 185 (CAS CATO-C4X-1130185)
- Nintedanib Impurity 69 (CAS 2380229-45-6)
- Estradiol Impurity 28 (CAS 3597-38-4)
- N-(3-aminophenyl)cyclopropanecarboxamide (CAS 879127-21-6)
- p-(Benzoylamino)benzoic Acid (CAS 582-80-9)
- 3-(1H-Indol-7-yl)propanenitrile (CAS 140639-84-5)
- 8-Methyl-3,8-diazabicyclo[3.2.1]octane hydrochloride (CAS 1379205-21-6)
- rel-tert-Butyl ((3R,4R)-4-methylpyrrolidin-3-yl)carbamate hydrochloride (CAS 2102410-18-2)
- (2S,5S,8S,11S,14S,17S)-2,5,8,11,14-Pentakis((1H-imidazol-4-yl)methyl)-17-amino-18-(1H-imidazol-4-yl)-4,7,10,13,16-pentaoxo-3,6,9,12,15-pentaazaoctadecan-1-oic acid (CAS 64134-30-1)
- FLAG Epitope Peptide (CAS 98849-88-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com