Parecoxib Impurity 27 CAS CATO-C4X-159127
| CAS No. | CATO-C4X-159127 |
| Molecular Formula | C22H23N3O7S2 |
| Molecular Weight | 505.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Parecoxib Impurity 27 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.
As a process- or degradation-related impurity, Parecoxib Impurity 27 (CAS CATO-C4X-159127, C22H23N3O7S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Parecoxib Impurity 27 (C22H23N3O7S2) 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 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 505.56 g/mol, it falls into the moderately-high-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.
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.
Physical & Chemical Properties
| Molecular Formula | C22H23N3O7S2 |
| Molecular Weight | 505.56 g/mol |
| Purity | 97%+ |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Parecoxib Standards
- Parecoxib sodium Impurity 11 (CAS 1708094-99-8)
- Parecoxib Impurity 38 (CAS CATO-C4X-159138)
- Parecoxib Impurity 44 (CAS 2338845-31-9)
- Parecoxib Impurity 37 (CAS CATO-C4X-159137)
- Parecoxib Impurity 74 (CAS CATO-C4X-159174)
- Parecoxib Impurity 35 (CAS 1373038-63-1)
- Parecoxib Impurity 60 (CAS CATO-C4X-159160)
- Parecoxib Impurity 68 (CAS 1373038-60-8)
Recommended Standards
- Benidipine Impurity 29 (CAS CATO-C4X-112029)
- Labetalol Impurity 47 (CAS CATO-C4X-246647)
- Hepronicate (CAS 7237-81-2)
- Fmoc-Suberol (CAS 212783-75-0)
- Xanomeline Impurity 15 (CAS CATO-C4X-330115)
- Progesterone EP Impurity H (CAS 1162-56-7)
- Fudosteine Impurity 39 (CAS CATO-C4X-144739)
- 3-((Tert-butoxycarbonyl)amino)bicyclo[2.1.0]Pentane-1-carboxylic acid (CAS 2387220-99-5)
- 2-(1H-Indol-3-yl)thiazolidine-4-carboxylic acid (CAS 1182224-95-8)
- Tert-butyl (S)-3-(3-chloropropyl)-3-(hydroxymethyl)pyrrolidine-1-carboxylate (CAS 2387560-74-7)
- (E)-Methyl 2-(2-(dimethylamino)vinyl)-3-nitrobenzoate (CAS 73816-11-2)
- 2-(Benzyloxy)-1,5-dibromo-3-fluorobenzene (CAS 1610471-01-6)
- 4-Bromo-1H-indene (CAS 45738-35-0)
- Peptide YY (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 81858-94-8)
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