Penehyclidine Impurity 25 Hydrochloride CAS 2091937-85-6
| CAS No. | 2091937-85-6 |
| Molecular Formula | C33H45NO3 |
| Molecular Weight | N/A |
| 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 Penehyclidine Impurity 25 Hydrochloride (CAS 2091937-85-6), a pharmacopoeial impurity reference standard (molecular formula C33H45NO3HCl, MW 540.19 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C33H45NO3HCl, Penehyclidine Impurity 25 Hydrochloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 540.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C33H45NO3 HCl |
| Molecular Weight | 540.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Penehyclidine Standards
- Penehyclidine Impurity 9 ((R,R)-Penehyclidine) (CAS 114121-68-5)
- Penehyclidine impurity 12 (CAS 151673-91-5)
- Penehyclidine Impurity 1 (CAS 151673-92-6)
- Penehyclidine HCl (CAS 151937-76-7)
- Penehyclidine Impurity 9 (CAS 183201-49-2)
- Penehyclidine Impurity 3 (CAS 2091937-84-5)
- Penehyclidine Impurity 3 HCI (CAS 2091937-84-5（free base）)
- Penehyclidine Impurity 6 (Mixture of Diastereomers) (CAS 2564756-90-5)
Recommended Standards
- Verapamil Impurity 35 HCl (CAS 77326-93-3 (free base))
- Avibactam Impurity 73 (CAS CATO-C4X-134873)
- Amoxicillin Impurity 62 (CAS CATO-C4X-114862)
- 2-(3-Bromophenyl)-4,6-diphenyl-1,3,5-triazine (CAS 864377-31-1)
- 4,4-Dimethyl-2-phenylpent-2-enoic acid (CAS 2102729-59-7)
- 1-(Chloromethyl)-3-iodo-5-methylbenzene (CAS 940099-31-0)
- 5-Bromo-4-methylpyridine-2-carboxamide (CAS 1809158-16-4)
- 5-(6-Fluoroindoline-1-carbonyl)-2-(p-tolyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 1394762-01-6)
- (5-Amino-1-ethyl-1H-pyrazol-3-yl)(2-methylpiperidin-1-yl)methanone (CAS 1856069-78-7)
- Hexapeptide-11 (CAS 161258-30-6)
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