Bambuterol Impurity 3 CAS CATO-C4X-27463
| CAS No. | CATO-C4X-27463 |
| Molecular Formula | C15H20N2O6 |
| Molecular Weight | 324.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Bambuterol Impurity 3 (C15H20N2O6) contains a flavonoid core, 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 324.33 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).
CATO supplies Bambuterol Impurity 3 (CAS CATO-C4X-27463), a pharmacopoeial impurity reference standard (molecular formula C15H20N2O6, MW 324.33 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H20N2O6 |
| Molecular Weight | 324.33 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Bambuterol Standards
- Bambuterol Impurity 4 (CAS CATO-C4X-27464)
- Bambuterol EP Impurity B (CAS 112935-92-9)
- Bambuterol Impurity 5 (CAS CATO-C4X-27465)
- 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 F (CAS 112935-94-1)
Recommended Standards
- Tegoprazan Impurity 78 (CAS CATO-C4X-229778)
- (2R,3S,5R)-2-(Hydroxymethyl)-5-(6-((((hydroxymethyl)(methyl)amino)methyl)amino)-9H-purin-9-yl)tetrahydrofuran-3-ol (CAS 112613-93-1)
- Methyl 2-O-acetyl-4,6-O-benzylidene-α-D-glucopyranoside (CAS 25577-40-6)
- 2-((2,4-Difluorophenyl)sulfonyl)-1-(2,4-dimethylphenyl)ethan-1-one (CAS 1326923-22-1)
- Octreotide Impurity 3 (CAS CATO-C4X-15203)
- Eleconazole lmpurity C15 (CAS 241479-73-2)
- Prilocaine EP Impurity F HCl (CAS 13327-14-5)
- 4-(Difluoromethyl)-2-fluorobenzaldehyde (CAS 875222-54-1)
- 6-Ethyl-7-hydroxy-3-phenyl-2-(trifluoromethyl)-4h-chromen-4-one (CAS 105258-37-5)
- 5-Methyl-2-oxaspiro[3.3]Heptan-5-ol (CAS 2306275-06-7)
- 3-phenyl-5-[(2R)tetrahydro-1H-pyrrol-2-yl]-1,2,4-oxadiazole (CAS 853104-20-8)
- 3-Chloro-N-(2-(2,4-difluorophenoxy)pyridin-3-yl)-2,2-dimethylpropanamide (CAS 243963-32-8)
- Ethyl 4-((methylamino)methyl)piperidine-1-carboxylate (CAS 1211450-30-4)
- Des-Ala28-Tirzepatide (CAS CATO-CPTD788945)
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