Ebastine EP Impurity G CAS 1429071-65-7
| CAS No. | 1429071-65-7 |
| Molecular Formula | C32H39NO3 |
| Molecular Weight | 485.66 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.
CATO supplies Ebastine EP Impurity G (CAS 1429071-65-7), a pharmacopoeial impurity reference standard (molecular formula C32H39NO3, MW 485.66 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Ebastine EP Impurity G (C32H39NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 485.66 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C32H39NO3 |
| Molecular Weight | 485.66 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
Related Ebastine Standards
Recommended Standards
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- Hydroxy Ebastine (CAS 210686-41-2)
- Rebamipide Impurity 46 (CAS CATO-C4X-152346)
- Racecadotril Diacid Impurity (CAS 141437-87-8)
- Melitracen Impurity 9 (CAS 78299-02-2)
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- N1,N1-Dimethyl-N2-((2-morpholinopyrimidin-5-yl)methyl)ethane-1,2-diamine (CAS 1279207-64-5)
- 7-Chloro-1-methyl-1h-pyrrolo[2,3-c]pyridine (CAS 875340-57-1)
- (S)-1-(1H-Indol-3-yl)propan-2-ol (CAS 1932438-34-0)
- (2-Chloro-4-morpholinopyrido[3,2-d]pyrimidin-6-yl)methanamine (CAS 1332076-30-8)
- 6-Ethynyl-N-methylquinolin-2-amine (CAS 1956354-68-9)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
Why CATO?
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