ErlotiniB impurity 35 CAS CATO-C4X-106935
| CAS No. | CATO-C4X-106935 |
| Molecular Formula | C14H17ClN2O5 |
| Molecular Weight | 328.75 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), ErlotiniB impurity 35 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.
CATO supplies ErlotiniB impurity 35 (CAS CATO-C4X-106935), a pharmacopoeial impurity reference standard (molecular formula C14H17ClN2O5, MW 328.75 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C14H17ClN2O5, ErlotiniB impurity 35 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 328.75 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 | C14H17ClN2O5 |
| Molecular Weight | 328.75 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related ErlotiniB Standards
- Erlotinib impurity 132 (CAS CATO-C4X-1069132)
- Erlotinib impurity 133 (CAS CATO-C4X-1069133)
- Erlotinib Impurity 60 (CAS CATO-C4X-106960)
- Erlotinib Impurity 42 (CAS 501684-22-6)
- Erlotinib Impurity 47 (CAS 179688-26-7)
- Erlotinib Impurity 67 (CAS CATO-C4X-106967)
- Erlotinib Impurity 68 (CAS CATO-C4X-106968)
- Erlotinib Impurity 135 (CAS CATO-C4X-1069135)
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- N-(4-(N-(6-methoxypyrimidin-4-yl)sulfamoyl)phenyl)acetamide (CAS 4049-01-8)
- Liraglutide Sodium Salt (CAS 204656-20-2（free base）)
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