Rivaroxaban Impurity 43 CAS 1369969-44-7
| CAS No. | 1369969-44-7 |
| Molecular Formula | C21H21N3O5 |
| Molecular Weight | 395.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Rivaroxaban Impurity 43 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.
CATO supplies Rivaroxaban Impurity 43 (CAS 1369969-44-7), a pharmacopoeial impurity reference standard (molecular formula C21H21N3O5, MW 395.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C21H21N3O5, Rivaroxaban Impurity 43 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 395.41 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.
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 | C21H21N3O5 |
| Molecular Weight | 395.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Rivaroxaban Standards
- Rivaroxaban impurity 176 (CAS CATO-C4X-1090176)
- Rivaroxaban impurity 196 (CAS CATO-C4X-1090196)
- Rivaroxaban Impurity 39 (CAS 446292-07-5)
- Rivaroxaban Impurity 55 (CAS 1257527-98-2)
- Rivaroxaban Desmorpholinone Analog (CAS 936232-22-3)
- Rivaroxaban Impurity 123 (CAS CATO-C4X-1090123)
- Rivaroxaban Impurity 163 (CAS 2422046-61-3)
- Rivaroxaban Impurity 78 (CAS CATO-C4X-109078)
Recommended Standards
- Ceftriaxone Sodium EP Impurity B(Cefotaxime EP Impurity E)（Cefodizime Impurity D） (CAS 66340-33-8)
- Cefotaxime Impurity 22 (CAS CATO-C4X-120122)
- N7-benzyl-N4-(3-ethynylphenyl)-6-nitroquinazoline-4,7-diamine (CAS CATO-C3D-262421)
- Cefdinir (CAS 91832-40-5)
- Roxatidine Impurity 51 (CAS CATO-C4X-121351)
- Vortioxetine Impurity 122 (CAS 2831955-36-1)
- Trimetazidine Dihydrochloride EP Impurity C (CAS 2103-57-3)
- (4-Aminophenyl)(4-methylpiperazin-1-yl)methanone (CAS 55121-99-8)
- 5-Fluoro-3-methyl-1-benzothiophene-2-carboxylic acid (CAS 1094254-19-9)
- 4-Cyano-4'-hydroxybiphenyl 4'-Hydroxy-4-biphenylcarbonitrile 4-Hydroxy-4'-cyanodiphenyl 19812-93-2 (CAS 19812-93-2)
- Momelotinib impurity 5 (CAS CATO-C4X-33775)
- 2-Fluoro-3-iodobenzamide (CAS 1261827-65-9)
- 6-bromo-8-methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS 1126636-93-8)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
Why CATO?
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