Linezolid impurity 105 CAS 556801-12-8
| CAS No. | 556801-12-8 |
| Molecular Formula | C22H21N3O5 |
| Molecular Weight | 407.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C22H21N3O5, Linezolid impurity 105 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 407.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Linezolid impurity 105 (CAS 556801-12-8) is a certified pharmaceutical impurity reference standard with the molecular formula C22H21N3O5 and a molecular weight of 407.42 g/mol.
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), Linezolid impurity 105 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 | C22H21N3O5 |
| Molecular Weight | 407.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 3 |
Related Linezolid Standards
- Linezolid Impurity 27 (CAS CATO-C4X-107327)
- Linezolid Impurity 91 (CAS CATO-C4X-107391)
- Linezolid Impurity 72 (CAS 2512195-95-6)
- Linezolid Impurity 79 (CAS 874340-08-6)
- Linezolid Impurity 31 (CAS CATO-C4X-107331)
- Linezolid Impurity 12 (CAS 1215006-11-3)
- Linezolid Impurity 89 (CAS CATO-C4X-107389)
- Linezolid Impurity 26 (CAS 168828-89-5)
Recommended Standards
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- 34-Methylcyanocobalamin(Cyanocobalamin EP Impurity C） (CAS 38218-51-8)
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- 3-Chloro-5-methoxy-1-methyl-1H-1,2,4-triazole (CAS 1330756-15-4)
- (Cys2)-Neuropeptide Y-8-aminooctanoyl-(D-Cys27)-Neuropeptide Y (25-32) (H-3298.0500) (CAS 128806-04-2)
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