Erlotinib Impurity 64 CAS CATO-C4X-106964
| CAS No. | CATO-C4X-106964 |
| Molecular Formula | C13H16Cl2O4 |
| Molecular Weight | 307.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 307.17 g/mol gives Erlotinib Impurity 64 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Erlotinib Impurity 64 (CAS CATO-C4X-106964) is a certified pharmaceutical impurity reference standard with the molecular formula C13H16Cl2O4 and a molecular weight of 307.17 g/mol.
Based on its molecular formula C13H16Cl2O4, Erlotinib Impurity 64 contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 307.17 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.
As a certified reference material (CRM), Erlotinib Impurity 64 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H16Cl2O4 |
| Molecular Weight | 307.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Erlotinib Standards
- Erlotinib Impurity 57 (CAS 1312937-41-9)
- Erlotinib Impurity 77 (CAS CATO-C4X-106977)
- Erlotinib Impurity 62 (CAS CATO-C4X-106962)
- Erlotinib Impurity 63 (CAS CATO-C4X-106963)
- Erlotinib Impurity 13 (CAS 183322-18-1)
- Erlotinib Impurity 54 (CAS CATO-C4X-106954)
- Erlotinib Impurity 80 (CAS 2518426-66-7)
- Erlotinib Impurity 109 (CAS 476168-17-9)
Recommended Standards
- N-[2-Fluoro-3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-2-methylpropanamide (CAS 2246699-14-7)
- Tert-butyl 6-bromo-2-naphthoate (CAS 1006899-73-5)
- N-(3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)isobutyramide (CAS 2246875-71-6)
- 1-[(2,6-Dichlorophenyl)methyl]-2-methyl-4-(1H-pyrazol-3-yl)-1H-imidazole (CAS 1007034-27-6)
- Indometacin EP Impurity H (CAS 1601-18-9)
- Orphenadrine EP Impurity C (CAS 17349-96-1)
- Cefotaxime Impurity 37 (CAS CATO-C4X-120137)
- 1-[(4-aminophenyl)sulfanyl]-N,N-dimethylformamide hydrochloride (CAS 1251925-33-3)
- Encorafenib (CAS 1269440-17-6)
- rel-(3aR,4R,6S,6aS)-2,2-Dimethyl-6-vinyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-ol (CAS 921759-18-4)
- 4,6-Dimethylbenzofuran-2,3-dione (CAS 31297-31-1)
- (2S)-N-((1R,2S)-2,3-Dihydro-2-hydroxy-1h-inden-1-yl)pyrrolidine-2-carboxamide (CAS 910540-91-9)
- 4-Chloro-6,7-dihydropyrido[3,4-d]pyrimidin-8(5H)-one (CAS 2227205-61-8)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
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