Mesalazine EP Impurity N CAS 96-97-9
| CAS No. | 96-97-9 |
| Molecular Formula | C7H5NO5 |
| Molecular Weight | 183.12 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 183.12 g/mol gives Mesalazine EP Impurity N distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Mesalazine EP Impurity N (CAS 96-97-9), a pharmacopoeial impurity reference standard (molecular formula C7H5NO5, MW 183.12 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C7H5NO5, Mesalazine EP Impurity N contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 183.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C7H5NO5 |
| Molecular Weight | 183.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Mesalazine Standards
- Mesalazine EP Impurity R (CAS 85-38-1)
- Mesalazine Impurity 43 (CAS 616-79-5)
- Mesalazine Impurity 56 (CAS CATO-C4X-132456)
- Mesalazine Ethyl Ester (CAS 62773-65-3)
- Mesalazine Impurity 42 (CAS 104786-99-4)
- Mesalazine Impurity 3 (CAS 98-73-7)
- Mesalazine Impurity 2 (CAS 26537-19-9)
- Mesalazine Impurity 21 (CAS 51-59-2)
Recommended Standards
- 4-Hydroxy-3-nitrobenzoic acid (CAS 616-82-0)
- 1,8-Dichlorooctane 2162-99-4 D1012 Octamethylene Chloride Octamethylene Dichloride (CAS 2162-99-4)
- Entacapone EP Impurity C(Mixtures of tautomers) (CAS 116313-85-0)
- Diethyl Pentylmalonate (CAS 6065-59-4)
- Osimertinib Impurity N1 (CAS 1421372-67-9)
- Voriconazole Impurity 70 (CAS 115617-41-9)
- Nicardipine Impurity 53 (CAS CATO-C4X-171053)
- (5-Methyl-6-(piperazin-1-yl)pyridin-3-yl)methanol (CAS 1355202-96-8)
- Aluminum oleate (CAS 688-37-9)
- Upacicalcet (CAS 1333218-50-0)
- (5-Bromo-2,3-dihydrobenzofuran-2-yl)methanamine hydrochloride (CAS 883143-64-4)
- Methyl 5-methoxy-1H-indazole-3-carboxylate (CAS 90915-65-4)
- 3-Bromo-5-(methylthio)benzonitrile (CAS 1595930-26-9)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
Why CATO?
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