Esmolol Impurity 90 CAS CATO-C4X-189190
| CAS No. | CATO-C4X-189190 |
| Molecular Formula | C28H39NO8 |
| Molecular Weight | 517.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Esmolol Impurity 90 (CAS CATO-C4X-189190) is a certified pharmaceutical impurity reference standard with the molecular formula C28H39NO8 and a molecular weight of 517.61 g/mol.
Based on its molecular formula C28H39NO8, Esmolol Impurity 90 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 517.61 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).
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.
Physical & Chemical Properties
| Molecular Formula | C28H39NO8 |
| Molecular Weight | 517.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Esmolol Standards
- Esmolol Impurity 25 (CAS CATO-C4X-189125)
- Esmolol Impurity 85 (CAS CATO-C4X-189185)
- Esmolol Impurity 11 (CAS 98903-90-3)
- Esmolol Impurity 91 (CAS CATO-C4X-189191)
- Esmolol Impurity 66 (CAS CATO-C4X-189166)
- Esmolol Impurity 22 (CAS CATO-C4X-189122)
- Esmolol Impurity 24 (CAS CATO-C4X-189124)
- Esmolol Impurity 73 (CAS CATO-C4X-189173)
Recommended Standards
- (6R,8S)-N-[4-(diethoxyphosphorylmethyl)phenyl]-8-methyl-9-oxo-5,6-dihydrothiepino[4,5-f][1,3]benzodioxole-6-carboxamide (CAS 180185-61-9)
- (2S)-2-[[[[3,5-Bis(trifluoromethyl)phenyl]amino]thioxomethyl]amino]-N-3,3-trimethyl-N-(phenylmethyl)butanamide (S)-2-[[3,5-Bis(trifluoromethyl)phenyl]thioureido]-N-benzyl-N,3,3-trimethylbutanamide 959979-30-7 (CAS 959979-30-7)
- (R)-N-(3-(1-Hydroxy-4-isopentyl-4-methyl-3-oxo-3,4-dihydronaphthalen-2-yl)-1,1-dioxido-4H-benzo[e][1,2,4]thiadiazin-7-yl)methanesulfonamide (CAS 847442-84-6)
- 5-Hydroxymethyl Tolterodine Glucuronide (CAS 210573-52-7)
- Ticagrelor Impurity 140 (CAS CATO-C4X-1093140)
- Obeticholic Acid Impurity 28 (CAS CATO-C4X-115328)
- Methisosildenafil Impurity 1 (CAS CATO-C4X-22841)
- 3-(2-Methyl-4-oxoquinazolin-3(4H)-yl)-2-phenylthiazolidin-4-one (CAS 114406-57-4)
- 2-[(4-Chlorobenzoyl)amino]-2-methylpropanoic acid (CAS 129973-02-0)
- Ethyl 6-(2-ethoxy-2-oxoethyl)-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 938189-69-6)
- 1-(3-Bromo-4-isopropylphenyl)ethan-1-one (CAS 65189-87-9)
- (2E)-1-(2-Chlorophenyl)-3-(2-ethoxyphenyl)prop-2-en-1-one (CAS 1354941-60-8)
- 3-(4-bromophenyl)-3-methylazetidine, trifluoroacetic acid (CAS 2044744-62-7)
- Gastric Inhibitory Polypeptide (6-30) amide (human) (CAS 1139691-72-7)
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