Mesalazine EP Impurity S CAS 1797983-23-3
| CAS No. | 1797983-23-3 |
| Molecular Formula | C14H12N2O5 |
| Molecular Weight | 288.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Mesalazine EP Impurity S (C14H12N2O5) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Mesalazine EP Impurity S (CAS 1797983-23-3) is a certified pharmaceutical impurity reference standard with the molecular formula C14H12N2O5 and a molecular weight of 288.26 g/mol.
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), Mesalazine EP Impurity S 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 | C14H12N2O5 |
| Molecular Weight | 288.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 2 |
Related Mesalazine Standards
- Mesalazine Impurity 32 (CAS CATO-C4X-132432)
- Mesalazine Unknown Impurity (CAS CATO-CPS-2403001)
- Mesalazine EP Impurity P (CAS 887256-40-8)
- Mesalazine Impurity 2 (CAS 876903-48-9)
- Mesalazine Impurity 57 (CAS CATO-C4X-132457)
- Mesalazine Impurity 44 (CAS 607-87-4)
- Mesalazine Impurity 55 (CAS CATO-C4X-132455)
- Mesalazine Impurity 45 (CAS CATO-C4X-132445)
Recommended Standards
- Fluconazole Impurity 8 (CAS 163921-62-8)
- Nicardipine Impurity 24 (CAS 102993-38-4)
- Fluconazole Impurity 10 (CAS 163921-61-7)
- Nicardipine Impurity 40 (CAS CATO-C4X-171040)
- Baclofen Impurity 79 (CAS 947583-11-1)
- Nicergoline EP Impurity C (CAS 35155-28-3)
- Pemetrexed Impurity 49 (CAS CATO-C4X-172649)
- (S)-cyclopropyl(3-(trifluoromethoxy)phenyl)methanamine (CAS 1213143-67-9)
- tert-Butyl 2-methyl-3-propylpiperazine-1-carboxylate (CAS 1035818-87-1)
- Pyridoxine Impurity 19 (CAS CATO-C4X-187719)
- (3-Aminopiperidin-1-yl)(4-methylthiazol-5-yl)methanone hydrochloride (CAS 1836075-97-8)
- Lornoxicam Impurity 29 (CAS CATO-C4X-201629)
- 1,1,2,2-Tetrakis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethene (CAS 1660996-72-4)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
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