Bambuterol Impurity 9 CAS CATO-C4X-27469
| CAS No. | CATO-C4X-27469 |
| Molecular Formula | C18H29N3O5 |
| Molecular Weight | 367.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Bambuterol Impurity 9 (CAS CATO-C4X-27469), a pharmacopoeial impurity reference standard (molecular formula C18H29N3O5, MW 367.44 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Bambuterol Impurity 9 (C18H29N3O5) is characterized by a steroid core, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Bambuterol Impurity 9 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 | C18H29N3O5 |
| Molecular Weight | 367.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Bambuterol Standards
- Bambuterol impurity 13 (CAS 81732-65-2)
- Bambuterol EP Impurity F (CAS 112935-94-1)
- Bambuterol Impurity N1 (CAS 81732-49-2)
- Bambuterol Impurity 11 (CAS CATO-C4X-274611)
- Bambuterol Impurity 10 (CAS CATO-C4X-274610)
- Bambuterol Impurity 4 (CAS CATO-C4X-27464)
- Bambuterol Impurity 3 (CAS CATO-C4X-27463)
- Bambuterol EP Impurity B (CAS 112935-92-9)
Recommended Standards
- Orforglipron impurity 81 (CAS CATO-C4X-323481)
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- Fmoc-7-aminoheptanoic acid (CAS 127582-76-7)
- Ruxolitinib Impurity 64 (CAS CATO-C4X-205864)
- Capmatinib Impurity 7 (CAS CATO-C4X-29857)
- Tadalafil Impurity 37 (CAS 171489-59-1)
- Brivaracetam impurity 106 (CAS CATO-C4X-2007106)
- 4,5-Difluoro-2-nitrobenzonitrile (CAS 165671-05-6)
- 3-Methyl-5-((tetrahydrofuran-3-yl)oxy)pentane-1-sulfonyl chloride (CAS 1478961-45-3)
- 1-(2,4-Dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 242797-28-0)
- N-(3-methoxyphenyl)-3-(methylamino)propanamide hydrochloride (CAS 1836988-18-1)
- Tinidazole Impurity 9 (CAS 126355-44-0)
- 4-Chloro-6-(3,5-dimethylpiperidin-1-yl)pyrimidine (CAS 1247390-56-2)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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