Mesalamine EP Impurity O Sodium Salt Hydrate CAS 1355342-86-7
| CAS No. | 1355342-86-7 |
| Molecular Formula | C6H6NO3S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H6NO3SNaH2O, Mesalamine EP Impurity O Sodium Salt Hydrate contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Mesalamine EP Impurity O Sodium Salt Hydrate (CAS 1355342-86-7), a pharmacopoeial impurity reference standard (molecular formula C6H6NO3SNaH2O, MW 213.18 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C6H6NO3S Na H2O |
| Molecular Weight | 213.18 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Mesalamine Standards
Recommended Standards
- Irinotecan Hydrochloride Trihydrate EP Impurity B (CAS 19685-09-7)
- Rimegepant Impurity 98 (CAS CATO-C4X-248798)
- Istradefylline Impurity 20 (CAS 1785764-26-2)
- 2-((2-Propyl-3,4-dihydro-2H-pyrrol-5-yl)thio)ethanol (CAS 61309-24-8)
- 5-Bromo-1-butyl-6-fluorobenzotriazole (CAS 1365272-54-3)
- 1-(4-(3-(4-(Benzyloxy)phenoxy)propoxy)phenyl)ethan-1-one (CAS 937602-11-4)
- Methyl 1-(4-(4-cyano-2-fluorophenyl)piperazin-1-yl)-2,3-dihydro-1H-indene-5-carboxylate (CAS 2798791-35-0)
- Phenylephrine Impurity 83 (CAS CATO-C4X-146783)
- Dibenzo[b,d]furan-1-amine (CAS 50548-40-8)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com