Mesalazine Impurity 42 CAS 104786-99-4
| CAS No. | 104786-99-4 |
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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 Impurity 42.
CATO supplies Mesalazine Impurity 42 (CAS 104786-99-4), a pharmacopoeial impurity reference standard (molecular formula C8H7NO4, MW 181.15 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Mesalazine Impurity 42 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 181.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 Impurity 42 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 | C8H7NO4 |
| Molecular Weight | 181.15 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Mesalazine Standards
- Mesalazine Ethyl Ester (CAS 62773-65-3)
- 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)
Recommended Standards
- Topiroxostat Impurity 31 (CAS CATO-C4X-105531)
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- Baloxavir Impurity 26 (CAS 207804-63-5)
- Nafamostat Impurity 48 Methanesulfonate (CAS CATO-C4X-133248)
- Elobixibat Impurity 32 (CAS CATO-C4X-283832)
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- Methyl 3-oxo-2,3-dihydrobenzo[d]isothiazole-6-carboxylate 1,1-dioxide (CAS 63633-85-2)
- 3-Chloro-1H-indol-5-amine (CAS 525590-26-5)
- 1-[3-(3-fluorophenyl)-1,2,4-oxadiazol-5-yl]ethan-1-ol (CAS 1341534-14-2)
- Piperidin-4-ylmethyl-quinoxalin-2-yl-amine hydrochloride (CAS 1185311-71-0)
- [2-(3-Methyl-pyrazol-1-yl)-ethylsulfanyl]-acetic acid (CAS 436088-31-2)
- C-telopeptide (CAS 162929-64-8)
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