Enzalutamide Impurity 56 CAS CATO-C4X-101656
| CAS No. | CATO-C4X-101656 |
| Molecular Formula | C12H11F3N2OS |
| Molecular Weight | 288.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Enzalutamide Impurity 56.
Enzalutamide Impurity 56 (CAS CATO-C4X-101656) is a certified pharmaceutical impurity reference standard with the molecular formula C12H11F3N2OS and a molecular weight of 288.29 g/mol.
The molecular framework of Enzalutamide Impurity 56 (C12H11F3N2OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine 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).
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.
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.
Physical & Chemical Properties
| Molecular Formula | C12H11F3N2OS |
| Molecular Weight | 288.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Enzalutamide Standards
- Enzalutamide Impurity 67 (CAS CATO-C4X-101667)
- Enzalutamide Impurity 50 (CAS CATO-C4X-101650)
- Enzalutamide Impurity 38 (CAS 948294-47-1)
- Enzalutamide Impurity N1 (CAS 2227589-23-1)
- Enzalutamide Impurity 69 (CAS 2088914-58-1)
- Enzalutamide Impurity 61 (CAS CATO-C4X-101661)
- Enzalutamide Impurity 66 (CAS CATO-C4X-101666)
- Enzalutamide Impurity 7 (CAS 1802242-47-2)
Recommended Standards
- N2-(4-nitrophenyl)thiazolo[5,4-d]pyrimidine-2,7-diamine (CAS 339029-13-9)
- Fluconazole Impurity 26 (CAS CATO-C4X-101926)
- N-(3-cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-2,2,2-trifluoroacetamide (CAS 372085-99-9)
- Olmesartan impurity 103 (CAS 93641-16-8)
- Letermovir Impurity N3 (CAS CATO-CP155164)
- Butenafine Impurity 19 (CAS CATO-C4X-159619)
- Rasagiline Impurity 3 HCl (CAS CATO-C4X-19133)
- 2-(Isoquinolin-8-yl)ethan-1-amine (CAS 1000538-18-0)
- 1-(6-Chloro-2-(trifluoromethyl)pyridin-3-yl)ethan-1-one (CAS 1060810-87-8)
- Ruthenium(II) sulfate (CAS 41860-99-5)
- 1-(2-chloropyrimidin-4-yl)-N-methylpiperidin-3-amine;hydrochloride (CAS 1289387-24-1)
- (S)-2-Amino-N-(4-methoxycyclohexyl)propanamide (CAS 1354002-46-2)
- 2-(Dimethylamino)-2-(p-tolyl)acetonitrile (CAS 15229-65-9)
- (Tyr?)-C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 142878-79-3)
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