Linezolid Impurity 92 CAS 872991-73-6
| CAS No. | 872991-73-6 |
| Molecular Formula | C17H19FN2O |
| Molecular Weight | 286.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Linezolid Impurity 92 (C17H19FN2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 286.34 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Linezolid Impurity 92 (CAS 872991-73-6), a pharmacopoeial impurity reference standard (molecular formula C17H19FN2O, MW 286.34 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C17H19FN2O |
| Molecular Weight | 286.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Linezolid Standards
- Linezolid Impurity 57 (CAS 477846-96-1)
- Linezolid Impurity 29 (CAS 1610690-08-8)
- Linezolid Impurity 61 (CAS CATO-C4X-107361)
- Linezolid Impurity 121 (CAS CATO-C4X-1073121)
- Linezolid Impurity 70 (CAS CATO-C4X-107370)
- Linezolid impurity 107 (CAS CATO-C4X-1073107)
- Linezolid Impurity 30 (CAS CATO-C4X-107330)
- Linezolid Impurity 52 (CAS 2512211-93-5)
Recommended Standards
- (2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate (CAS 7305-59-1)
- Flurbiprofen Impurity 105 (CAS CATO-C4X-1444105)
- 2,2-dimethyl-1,3-dioxan-5-yl 4-methylbenzenesulfonate (CAS 1572045-90-9)
- Flurbiprofen Impurity 43 (CAS CATO-C4X-144443)
- Gadobutrol Impurity 143 4HCl (CAS CATO-C4X-2120143)
- Itraconazole Impurity 67 (CAS CATO-C4X-149767)
- Apixaban Impurity 75 (CAS CATO-C4X-108875)
- 3-[(3-Methoxybenzyl)oxy]pyrrolidine hydrochloride (CAS 1220034-35-4)
- 6-Bromo-8-chloro-1,2,3,4-tetrahydroisoquinoline (CAS 1592348-11-2)
- 6-(Hydroxymethyl)-2-methylisoindolin-1-one (CAS 1784853-28-6)
- 2-Fluoro-4-methylphenylboronic Acid (CAS 170981-26-7)
- Isopropylthiobenzene (CAS 3019-20-3)
- Methylacetylene-d4 (gas) (CAS 6111-63-3)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com