Ketorolac Impurity 37 CAS CATO-C4X-166937
| CAS No. | CATO-C4X-166937 |
| Molecular Formula | C20H21NO5 |
| Molecular Weight | 355.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Ketorolac Impurity 37 (CAS CATO-C4X-166937, C20H21NO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Ketorolac Impurity 37 (C20H21NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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.
CATO manufactures Ketorolac Impurity 37 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 | C20H21NO5 |
| Molecular Weight | 355.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Ketorolac Standards
- Ketorolac impurity 64 (CAS 141031-78-9)
- Ketorolac EP Impurity E (CAS 167105-80-8)
- Ketorolac Impurity 59 (CAS 2705552-46-9)
- Ketorolac Impurity 29 (CAS CATO-C4X-166929)
- Ketorolac Impurity 79 (CAS CATO-C4X-166979)
- Ketorolac Impurity 42 (CAS 144710-35-0)
- Ketorolac Impurity 78 (CAS CATO-C4X-166978)
- Ketorolac 2-Benzoylpyrrole Iodo Impurity (CAS 141031-77-8)
Recommended Standards
- Naloxone Impurity 19 (CAS CATO-C4X-149319)
- Indobufen Impurity 44 (CAS CATO-C4X-179244)
- Naltrexone EP Impurity I (CAS 96445-14-6)
- Papaverine EP Impurity B (Papaverinol) (CAS 482-76-8)
- Pyridoxine Impurity 7 (CAS 205321-07-9)
- Fruquintinib impurity 7 (CAS CATO-C4X-30377)
- Ranolazine Impurity 8 (CAS CATO-C4X-10268)
- 3-(2-Aminoethyl)-5-fluoro-2,3-dihydro-1h-indol-2-one hydrochloride (CAS 1245568-58-4)
- Methyl 2-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}acetyl)-6-oxo-1,2-diazinane-4-carboxylate (CAS 251307-23-0)
- 2,2'-([1,1'-Biphenyl]-4,4'-disulfonyl)bis(benzene-1,4-diol) (CAS 29624-69-9)
- 3-[4-(Ethoxycarbonyl)-5-methyl-3-pyrrolyl]propanoic Acid (CAS 38664-16-3)
- 2-((Naphthalen-2-ylmethylene)amino)phenol (CAS 78685-68-4)
- Cyclohexyl(2,3,4,5-tetrafluorophenyl)methanone (CAS 1443322-23-3)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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