Penehyclidine Impurity 27 CAS 860804-20-2
| CAS No. | 860804-20-2 |
| Molecular Formula | C21H32NO2 |
| 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.
Penehyclidine Impurity 27 (CAS 860804-20-2) is a certified pharmaceutical impurity reference standard with the molecular formula C21H32NO2Br and a molecular weight of 410.40 g/mol.
Based on its molecular formula C21H32NO2Br, Penehyclidine Impurity 27 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 410.40 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).
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 | C21H32NO2 Br |
| Molecular Weight | 410.40 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-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 25 Hydrochloride (CAS 2091937-85-6)
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