Ebastine EP Impurity E Fumarate CAS 1312211-93-0(Free Base)
| CAS No. | 1312211-93-0(Free Base) |
| Molecular Formula | C33H41NO2 |
| Molecular Weight | N/A |
| 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.
As a process- or degradation-related impurity, Ebastine EP Impurity E Fumarate (CAS 1312211-93-0(Free Base), C33H41NO2C4H4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C33H41NO2C4H4O4, Ebastine EP Impurity E Fumarate 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 599.77 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Ebastine EP Impurity E Fumarate 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 | C33H41NO2 C4H4O4 |
| Molecular Weight | 599.77 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Ebastine Standards
- Ebastine Impurity 11 (CAS 1229622-28-9)
- Ebastine N-Oxide (CAS 1256285-71-8)
- Ebastine EP Impurity E (CAS 1312211-93-0)
- Ebastine EP Impurity F (CAS 1429071-63-5)
- Ebastine EP Impurity G (CAS 1429071-65-7)
- Ebastine Impurity N2 (CAS 43076-61-5)
- Ebastine EP Impurity C (CAS 58258-01-8)
- Ebastine Impurity 9 (CAS 632-50-8)
Recommended Standards
- Bortezomib Impurity 56 TFA salt (CAS CATO-C4X-107256)
- Linagliptin Impurity 73 (CAS CATO-C4X-110173)
- Losartan Impurity 42 (CAS 2901098-91-5)
- N-(3-Aminopropyl)-N-(3-hydroxypropyl)formamide (CAS 758630-35-2)
- 3-Fluoro-5-methylbenzonitrile (CAS 216976-30-6)
- 1-(2-Methylpentanoyl)piperidine-2-carboxylic acid (CAS 1189191-35-2)
- Dexrazoxane Impurity 37 (CAS CATO-C4X-202037)
- 1-(Tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-amine hydrochloride (CAS 1639350-46-1)
- Ethyl 6-methoxybenzo[d]thiazole-2-carboxylate (CAS 313371-32-3)
- D-Asp9-Tirzepatide (CAS CATO-CPTD788923)
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