Nafcillin Impurity 9 CAS 940306-33-2
| CAS No. | 940306-33-2 |
| Molecular Formula | C20H24N2O4S |
| Molecular Weight | 388.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Nafcillin Impurity 9 (C20H24N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 388.48 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Nafcillin Impurity 9 (CAS 940306-33-2), molecular formula C20H24N2O4S and molecular weight 388.48 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Nafcillin Impurity 9 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 | C20H24N2O4S |
| Molecular Weight | 388.48 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Nafcillin Standards
- Nafcillin Impurity 2 (CAS CATO-C4X-33382)
- Nafcillin Impurity 84 (CAS CATO-C4X-33384)
- Nafcillin Impurity 1 (CAS CATO-C4X-33381)
- Nafcillin (CAS 147-52-4)
- Nafcillin Sulfoxide (CAS 41061-20-5)
- Nafcillin Impurity 3 (Mixture of Diastereomers) (CAS CATO-C4X-33383)
- Nafcillin-d5 Sodium Salt (CAS 1356354-25-0)
- Nafcillin-D6 sodium salt (CAS CATO-CCAD304201)
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