Mesalazine Ethyl Ester CAS 62773-65-3
| CAS No. | 62773-65-3 |
| Molecular Formula | C9H11NO3 |
| Molecular Weight | 181.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Mesalazine Ethyl Ester.
Mesalazine Ethyl Ester (CAS 62773-65-3), molecular formula C9H11NO3 and molecular weight 181.19 g/mol, is a CATO reference standard with documented purity and traceability.
Mesalazine Ethyl Ester (C9H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H11NO3 |
| Molecular Weight | 181.19 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
Related Mesalazine Standards
- Mesalazine Impurity 42 (CAS 104786-99-4)
- Mesalazine Impurity 43 (CAS 616-79-5)
- Mesalazine Impurity 56 (CAS CATO-C4X-132456)
- Mesalazine EP Impurity N (CAS 96-97-9)
- Mesalazine EP Impurity R (CAS 85-38-1)
- Mesalazine Impurity 3 (CAS 98-73-7)
- Mesalazine Impurity 2 (CAS 26537-19-9)
- Mesalazine EP Impurity J (CAS 112725-89-0)
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- 3-((1-Ethyl-1h-pyrazol-4-yl)methyl)pyrrolidin-3-ol (CAS 1341606-21-0)
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Why CATO?
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