Cariprazine Impurity 4 CAS CATO-C4X-24084
| CAS No. | CATO-C4X-24084 |
| Molecular Formula | C21H32Cl2N4O |
| Molecular Weight | 427.41 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 Cariprazine Impurity 4.
Cariprazine Impurity 4 (CAS CATO-C4X-24084) is a certified pharmaceutical impurity reference standard with the molecular formula C21H32Cl2N4O and a molecular weight of 427.41 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Cariprazine Impurity 4 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 427.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C21H32Cl2N4O |
| Molecular Weight | 427.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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 | Cl-containing |
| Nitrogen Atoms | 4 |
Related Cariprazine Standards
- Cariprazine (CAS 839712-12-8)
- Cariprazine Impurity 45 (CAS 1378235-50-7)
- Cariprazine Impurity 9 (CAS 1480744-38-4)
- Cariprazine Impurity 63 (CAS CATO-C4X-240863)
- Cariprazine Impurity 41 (CAS 1957145-61-7)
- Cariprazine-d6 (CAS 1308278-67-2)
- Cariprazine Impurity 18 (CAS CATO-C4X-240818)
- Cariprazine Impurity 36 (CAS CATO-C4X-240836)
Recommended Standards
- Pemetrexed Impurity 68 (CAS CATO-C4X-172668)
- Pemetrexed EP Impurity E (CAS 182009-04-7)
- Ethyl (2E)-2-(2,4-difluorobenzenesulfonyl)-3-[(3,4-dimethoxyphenyl)amino]prop-2-enoate (CAS 1327176-76-0)
- Pemetrexed (CAS 137281-23-3)
- Pemetrexed Impurity 59 HCl (CAS CATO-C4X-172659)
- Metaraminol Impurity 49 (CAS CATO-C4X-225249)
- Cefepime EP Impurity D Sodium Salt (CAS 78172-35-7)
- 2-Amino-3-bromo-4-chlorobenzoic acid (CAS 1698146-49-4)
- (R)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid hydrochloride (CAS 41220-48-8)
- 4-methyl-2-thiophenecarboxaldehyde 4-methylthiophene-2-carbaldehyde 6030-36-0 A832678 (CAS 6030-36-0)
- N-[(5-Methyl-2-thienyl)methyl]-1-butanamine hydrochloride (CAS 1048664-63-6)
- 1-Bromo-2-butanol (CAS 2482-57-7)
- 2,4,6-Tris(chlorodifluoromethyl)-1,3,5-triazine (CAS 16617-00-8)
- Bonemarrow-Derived Mesenchymal Stem Cells Affinity Peptide trifluoroacetate salt (CAS 683750-83-6)
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