Esmolol Impurity 19 CAS 108260-84-0
| CAS No. | 108260-84-0 |
| Molecular Formula | C13H18O5 |
| Molecular Weight | 254.28 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.
Esmolol Impurity 19 (CAS 108260-84-0) is a certified pharmaceutical impurity reference standard with the molecular formula C13H18O5 and a molecular weight of 254.28 g/mol.
Based on its molecular formula C13H18O5, Esmolol Impurity 19 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 254.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Esmolol Impurity 19 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 | C13H18O5 |
| Molecular Weight | 254.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Esmolol Standards
- Esmolol Impurity 77 (CAS CATO-C4X-189177)
- Esmolol Impurity 96 (CAS CATO-C4X-189196)
- Esmolol Impurity 71 (CAS CATO-C4X-189171)
- Esmolol Impurity 55 (CAS 33947-97-6)
- Esmolol Impurity 21 (CAS CATO-C4X-189121)
- Esmolol Impurity 78 (CAS CATO-C4X-189178)
- Esmolol Impurity N2 (CAS 112805-58-0)
- Esmolol Impurity 54 (CAS CATO-C4X-189154)
Recommended Standards
- Epinastine Impurity 58 (CAS CATO-C4X-184058)
- Fenbufen (CAS 36330-85-5)
- Pranoprofen Impurity 55 (CAS 56708-14-6)
- Tolvaptan Impurity 37 (CAS 607-86-3)
- Fluralaner Impurity 61 (CAS CATO-C4X-218061)
- Teriflunomide Impurity C53 (CAS 1011244-72-6)
- Telmisartan Impurity 32 (CAS 528560-94-3)
- 3-(2,5-Dimethoxyphenyl)-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 1177356-65-8)
- 1-(3-(Hydroxymethyl)isoxazol-5-yl)ethanone (CAS 866002-71-3)
- 2,5-Dibromo-3-hexadecylthiophene (CAS 178452-13-6)
- N'-[(1E)-3,3-Dimethyl-5-oxocyclohexylidene]pyridine-4-carbohydrazide (CAS 328113-30-0)
- tert-Butyl 4-(3-phenylpropyl)-1,4-diazepane-1-carboxylate (CAS 198895-74-8)
- 1-(9H-Fluoren-3-yl)ethanone (CAS 55718-48-4)
- Liraglutide(14-22)TFA Salt (CAS CATO-C4X-199212)
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