Bambuterol Impurity 5 CAS CATO-C4X-27465
| CAS No. | CATO-C4X-27465 |
| Molecular Formula | C11H12BrNO4 |
| Molecular Weight | 302.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Bambuterol Impurity 5 (CAS CATO-C4X-27465) is a certified pharmaceutical impurity reference standard with the molecular formula C11H12BrNO4 and a molecular weight of 302.12 g/mol.
The molecular framework of Bambuterol Impurity 5 (C11H12BrNO4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Bambuterol Impurity 5 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 | C11H12BrNO4 |
| Molecular Weight | 302.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bambuterol Standards
- Bambuterol EP Impurity C (Mixture of Enantiomers) (CAS 81732-67-4)
- Bambuterol EP Impurity D (Mixture of Enantiomers) (CAS 112935-93-0)
- Bambuterol EP Impurity E (CAS 81732-48-1)
- Bambuterol Impurity 12 (CAS CATO-C4X-274612)
- Bambuterol EP Impurity B (CAS 112935-92-9)
- Bambuterol Impurity 3 (CAS CATO-C4X-27463)
- Bambuterol Impurity 4 (CAS CATO-C4X-27464)
- Bambuterol EP Impurity F (CAS 112935-94-1)
Recommended Standards
- Bromopride Impurity 1 (CAS 4093-34-9)
- 2-Chloro-N-(1-(2-chloro-6-fluorobenzyl)-1H-pyrazol-3-yl)acetamide (CAS 1004643-43-9)
- Cenobamate Impurity 63 (CAS CATO-C4X-241663)
- 3-Bromo-4-hydroxy-6-trifluoromethylquinoline (CAS 1065087-84-4)
- Evocalcet Impurity 18 HCl (CAS CATO-C4X-248518)
- Pregabalin Impurity 131 (CAS 1568181-40-7 (free base))
- Estradiol Impurity N1 (CAS 4011-48-7)
- N-((S)-1-((R)-2-Amino-3-(4-chlorophenyl)propanoyl)pyrrolidin-3-yl)-N-(cyclohexylmethyl)isobutyramide 2,2,2-trifluoroacetate (CAS 852478-10-5)
- Fmoc-D-Cit-OH (CAS 200344-33-8)
- CAS 2055167-74-1 (CAS 2055167-74-1)
- 4-Chloro-6-(4-fluorobenzyl)pyrimidine (CAS 405931-01-3)
- 2,3-Difluorobenzyl Alcohol (CAS 75853-18-8)
- 3-(4-Hydroxy-3-methoxy-5-methylbenzyl)indolin-2-one (CAS 882747-48-0)
- Neuropeptide FF (CAS 99566-27-5)
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