Penehyclidine impurity 32 CAS CATO-C4X-130432
| CAS No. | CATO-C4X-130432 |
| Molecular Formula | C22H28NO2 |
| 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 32 (CAS CATO-C4X-130432), a pharmacopoeial impurity reference standard (molecular formula C22H28NO2Br, MW 418.37 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Penehyclidine impurity 32 (C22H28NO2Br) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C22H28NO2 Br |
| Molecular Weight | 418.37 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| 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)
Recommended Standards
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- Regorafenib Impurity 45 (CAS CATO-C4X-104745)
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- 4-phenyl-2,5-dihydro-1H-pyrrol-2-one (CAS 92119-61-4)
- N-(2,4-Difluorophenyl)-N-(2-pyridinylmethyl)urea (CAS 706771-04-2)
- Metaraminol Impurity 37 (CAS 55789-02-1)
- tert-Butyl 6a-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-carboxylate (CAS 2007920-67-2)
- N-(1H-indol-5-yl)benzo[c][1,2,5]oxadiazole-5-carboxamide (CAS 710945-67-8)
- 1-(2-(1,1-Dioxidothietan-3-yl)ethoxy)urea (CAS 1864337-12-1)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
Why CATO?
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