Erlotinib Impurity 104 CAS CATO-C4X-1069104
| CAS No. | CATO-C4X-1069104 |
| Molecular Formula | C11H15NO |
| Molecular Weight | 177.24 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 Erlotinib Impurity 104.
Erlotinib Impurity 104 (CAS CATO-C4X-1069104) is a certified pharmaceutical impurity reference standard with the molecular formula C11H15NO and a molecular weight of 177.24 g/mol.
Erlotinib Impurity 104 (C11H15NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H15NO |
| Molecular Weight | 177.24 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Erlotinib Standards
- Erlotinib Impurity 84 (CAS 16064-15-6)
- Erlotinib Impurity 41 (CAS 69088-96-6)
- Erlotinib Impurity 40 (CAS 591-19-5)
- Erlotinib Impurity 124 (CAS 7451-98-1)
- Erlotinib Impurity 180 (CAS 127791-53-1)
- Erlotinib Impurity 112 (CAS 555-68-0)
- Erlotinib Impurity 123 (CAS 1145671-36-8)
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Recommended Standards
- Amisulpride Impurity 69 (CAS CATO-C4X-104569)
- Azilsartan impurity 164 (CAS 1948222-11-4)
- (S)-3-methyl-4-phenyl-1,3-oxazinane (CAS 147200-63-7)
- Fluoxetine Impurity 16 (CAS 3506-36-3)
- Loxoprofen impurity 125 (CAS CATO-C4X-1488125)
- Vericiguat Impurity 80 (CAS CATO-C4X-289680)
- Bicalutamide Impurity 37 (CAS CATO-C4X-101337)
- (2,4-Difluorophenyl)(4-methylpyridin-2-yl)methanone (CAS 1187170-44-0)
- 2-[4-hydroxy-1-(propan-2-yl)piperidin-4-yl]acetic acid hydrochloride (CAS 1423028-21-0)
- 2-Methyl-5-nitro-2,3-dihydroimidazo[2,1-b]oxazole (CAS 73332-79-3)
- 5-bromo-2-(trideuteriomethyl)indazole (CAS 2447686-91-9)
- 2-(5-Bromo-2-methylbenzyl)thiophene (CAS 1823462-28-7)
- N-(2-Hydroxy-1-phenylethyl)-3-nitrobenzamide (CAS 478040-53-8)
- Glucagon (19-29) (human, rat, porcine) (CAS 64790-15-4)
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