Isoprenaline Impurity 20 CAS CATO-C4X-277520
| CAS No. | CATO-C4X-277520 |
| Molecular Formula | C11H16N2O4 |
| Molecular Weight | 240.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Isoprenaline Impurity 20 (CAS CATO-C4X-277520) is a certified pharmaceutical impurity reference standard with the molecular formula C11H16N2O4 and a molecular weight of 240.26 g/mol.
The molecular framework of Isoprenaline Impurity 20 (C11H16N2O4) is characterized by an amino-acid-derived structure, 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. 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), Isoprenaline Impurity 20 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 | C11H16N2O4 |
| Molecular Weight | 240.26 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Isoprenaline Standards
- Isoprenaline impurity 21 (CAS CATO-C4X-277521)
- Isoprenaline Impurity 6 (CAS CATO-C4X-27756)
- Isoprenaline impurity 39 (CAS CATO-C4X-277539)
- Isoprenaline Impurity 48 (CAS CATO-C4X-277548)
- Isoprenaline Impurity 1 (CAS CATO-C4X-27751)
- Isoprenaline Impurity 2 (CAS CATO-C4X-27752)
- Isoprenaline Impurity 3 (CAS 14309-63-8)
- Isoprenaline Impurity 17 (CAS CATO-C4X-277517)
Recommended Standards
- Carbidopa EP Impurity H (CAS 1361017-74-4)
- Carbidopa EP Impurity E (CAS 52514-63-3)
- N-Nitroso Isoprenaline Impurity 35 (CAS CATO-C4X-277535)
- Carbidopa impurity 38 (CAS 2470439-16-6)
- Atracurium Impurity 118 (CAS 24734-71-2)
- Bupropion Impurity 03 (CAS 2763780-10-3)
- Posaconazole Impurity 47 (CAS 1388148-29-5)
- 5-((Z)-4-Methoxybenzylidene)-3-((4-methoxybenzylidene)amino)-2-thioxothiazolidin-4-one (CAS 94258-53-4)
- 1-(3-Fluoropyridin-4-yl)cyclopropan-1-amine hydrochloride (CAS 2149601-90-9)
- 3-Amino-5-(pyridin-4-yl)thiophene-2-carboxylic acid (CAS 83739-50-8)
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- (R)-1-((R)-piperidine-3-carbonyl)piperidine-3-carboxylic acid hydrochloride (CAS 448281-71-8)
- Neuropeptide Y (2-36), amide, porcine (CAS 102961-52-4)
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