Ketorolac Impurity 41 CAS 136116-84-2
| CAS No. | 136116-84-2 |
| Molecular Formula | C21H23NO7 |
| Molecular Weight | 401.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ketorolac Impurity 41 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.
Ketorolac Impurity 41 (CAS 136116-84-2) is a certified pharmaceutical impurity reference standard with the molecular formula C21H23NO7 and a molecular weight of 401.41 g/mol.
Ketorolac Impurity 41 (C21H23NO7) 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.
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.
Physical & Chemical Properties
| Molecular Formula | C21H23NO7 |
| Molecular Weight | 401.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related Ketorolac Standards
- Ketorolac Impurity 43 (CAS CATO-C4X-166943)
- Ketorolac Impurity 44 (CAS CATO-C4X-166944)
- Ketorolac Impurity 73 (CAS CATO-C4X-166973)
- Ketorolac Impurity 56 (CAS CATO-C4X-166956)
- Ketorolac Impurity 46 (CAS 144710-34-9)
- Ketorolac Impurity 47 (CAS CATO-C4X-166947)
- Ketorolac Impurity 71 (CAS CATO-C4X-166971)
- Ketorolac impurity 61 (CAS CATO-C4X-166961)
Recommended Standards
- Deferasirox EP Impurity E (CAS 201530-79-2)
- Azilsartan Impurity 21 (CAS 136285-67-1)
- Azilsartan Impurity 18 (CAS 2171316-29-1)
- Roxadustat Impurity 141 (CAS CATO-C4X-2213141)
- Olmesartan Impurity 39 (CAS 2411637-68-6)
- Elagolix Impurity 20 (CAS 110143-62-9)
- Cilastatin Impurity 31 (CAS CATO-C4X-196031)
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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