Meloxicam impurity 13 CAS CATO-C4X-169013
| CAS No. | CATO-C4X-169013 |
| Molecular Formula | C7H10N2O3S |
| Molecular Weight | 202.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Meloxicam impurity 13 (CAS CATO-C4X-169013, C7H10N2O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Meloxicam impurity 13 (C7H10N2O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 202.23 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.
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.
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 | C7H10N2O3S |
| Molecular Weight | 202.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Meloxicam Standards
- Meloxicam Impurity 7 (CAS 632-25-7)
- Meloxicam Impurity 12 (CAS 5510-10-1)
- Meloxicam Impurity 8 (CAS 125372-22-7)
- Meloxicam Impurity 16 (CAS 39122-64-0)
- Meloxicam Impurity 10 (CAS CATO-C4X-169010)
- Meloxicam Impurity 9 (CAS 13165-80-5)
- Meloxicam Impurity 11 (CAS 1865298-74-3)
- Meloxicam Impurity 17 (CAS CATO-C4X-169017)
Recommended Standards
- Cefaclor Impurity 57 (CAS CATO-C4X-127057)
- Bisacodyl Impurity 14 (CAS 100378-86-7)
- 1698AF 4-Methylsulfanyl-2-tetrazol-1-yl-butyric acid 883544-48-7 C6H10N4O2S (CAS 883544-48-7)
- 3-(5-amino-1,3,4-thiadiaZol-2-yl)benzonitrile (CAS 1019575-49-5)
- N-Ethylcarbazole Impurity 6 (CAS CATO-C4X-30406)
- Levothyroxine lmpurity 45 (CAS CATO-C4X-167845)
- Lenvatinib Impurity 147 (CAS 863786-02-1)
- ethyl 4-chloro-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 37801-57-3)
- 3-(Benzyloxy)-4-chlorophenol (CAS 879094-90-3)
- O-Desmethyl Midostaurin (CGP62221) (CAS 740816-86-8)
- tert-Butyl 5-(bromomethyl)-2,2-dimethyloxazolidine-3-carboxylate (CAS 1956365-26-6)
- 4-[(Cyclopentylamino)methyl]phenol hydrochloride (CAS 1881329-12-9)
- 11,11-Dichloro Oxcarbazepine (CAS 1798004-39-3)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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