Parecoxib Impurity 53 CAS CATO-C4X-159153
| CAS No. | CATO-C4X-159153 |
| Molecular Formula | C16H15N3O5S2 |
| Molecular Weight | 393.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 393.44 g/mol gives Parecoxib Impurity 53 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Parecoxib Impurity 53 (CAS CATO-C4X-159153, C16H15N3O5S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Parecoxib Impurity 53 (C16H15N3O5S2) 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 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 393.44 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).
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), Parecoxib Impurity 53 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 | C16H15N3O5S2 |
| Molecular Weight | 393.44 g/mol |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Parecoxib Standards
- Parecoxib Impurity 42 (CAS CATO-C4X-159142)
- Parecoxib Impurity 43 (CAS 1373038-59-5)
- Parecoxib Impurity 54 (CAS CATO-C4X-159154)
- Parecoxib Impurity 55 (CAS CATO-C4X-159155)
- Parecoxib Impurity 56 (CAS CATO-C4X-159156)
- Parecoxib Impurity 57 (CAS CATO-C4X-159157)
- Parecoxib Impurity 58 (CAS CATO-C4X-159158)
- Parecoxib Impurity 26 (CAS CATO-C4X-159126)
Recommended Standards
- N-Nitroso Indacaterol Mono Ethyl Impurity 65 (CAS CATO-C4X-150065)
- Valdecoxib Impurity 1 (CAS CATO-C4X-14511)
- Tryptophan EP Impurity J (CAS 164068-19-3)
- Erlotinib Impurity 96 (CAS CATO-C4X-106996)
- Neratinib Impurity 17 (CAS 1144516-19-7)
- Biotin EP Impurity D(Mixture of Diastereomers) (CAS 415725-35-8)
- Cefazolin Impurity 82 (CAS CATO-C4X-157782)
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- 1-[3-(4-fluorophenyl)prop-2-enoyl]-4-hydroxypyrrolidine-2-carboxylic acid (CAS 1105494-18-5)
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- 1,4-Dioxaspiro[4.5]decane-6-carbonitrile (CAS 141632-80-6)
- Tau Peptide (304-318) trifluoroacetate salt (CAS 330456-49-0)
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