Mesalazine Impurity 1 CAS 939-97-9
| CAS No. | 939-97-9 |
| Molecular Formula | C11H14O |
| Molecular Weight | 162.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Mesalazine Impurity 1 is closely related to a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Mesalazine Impurity 1 (CAS 939-97-9) is a certified pharmaceutical impurity reference standard with the molecular formula C11H14O and a molecular weight of 162.23 g/mol.
Mesalazine Impurity 1 (C11H14O) contains a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
CATO manufactures Mesalazine Impurity 1 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H14O |
| Molecular Weight | 162.23 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Mesalazine Standards
- Mesalazine Impurity 10 (CAS 3958-79-0)
- Mesalazine Impurity 25 (CAS 42753-75-3)
- Mesalazine EP Impurity L (CAS 118-91-2)
- Mesalazine EP Impurity J (CAS 112725-89-0)
- Mesalazine-d3 (CAS 1309283-32-6)
- Mesalazine EP Impurity G (CAS 490-79-9)
- Mesalazine Impurity 16 (CAS 13252-72-7)
- Mesalazine EP Impurity E (CAS 65-49-6)
Recommended Standards
- Eperisone Impurity 14 (CAS 191543-16-5)
- 4'-Ethylpropiophenone (CAS 27465-51-6)
- o-Nicotine (CAS 23950-04-1)
- Diethylene Glycol-Monobutyl Ether (CAS 112-34-5)
- Edoxaban Impurity 9 (CAS 552850-73-4)
- Voriconazole Impurity 17（Mixture of Diastereoisomer） (CAS 188416-35-5)
- Rivaroxaban Impurity 124 (CAS CATO-C4X-1090124)
- 2-Amino-5-(difluoromethyl)benzoic acid (CAS 1784906-28-0)
- N-(4-BRomophenyl)-3-hydroxybenzamide (CAS 92905-58-3)
- N-(2-Methylphenyl)-1,3-benzothiazol-2-amine (CAS 25717-12-8)
- 2,6-Bis(4-Fluorophenyl)-3,5-Diphenyl-1,4-Benzoquinone (CAS 22030-93-9)
- Methyl 4-(((1,3-dioxoisoindolin-2-yl)oxy)methyl)benzoate (CAS 339011-73-3)
- 4,4'-Bis((E)-4-methoxystyryl)-2,2'-bipyridine (CAS 166827-53-8)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
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