Atrasentan Impurity 11 CAS 890935-76-9
| CAS No. | 890935-76-9 |
| Molecular Formula | 2*C31H42N2O6 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Atrasentan Impurity 11 (CAS 890935-76-9) is a certified pharmaceutical impurity reference standard with the molecular formula C31H42N2O6 and a molecular weight of 538.68 g/mol.
Based on its molecular formula C31H42N2O6, Atrasentan Impurity 11 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 538.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Atrasentan Impurity 11 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 | 2*C31H42N2O6 |
| Molecular Weight | 538.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Atrasentan Standards
- Atrasentan Impurity 131 (CAS 1058349-04-4)
- Atrasentan Impurity 132 (CAS 1058349-05-5)
- Atrasentan Impurity 133 (CAS 1058349-06-6)
- Atrasentan Impurity 134 (CAS 1058349-07-7)
- Atrasentan Impurity 135 (CAS 1058349-10-2)
- Atrasentan Impurity 136 (CAS 1058349-11-3)
- Atrasentan Impurity 137 (CAS 1058349-12-4)
- Atrasentan Impurity 66 (CAS 1058349-13-5)
Recommended Standards
- Minocycline EP Impurity H (CAS 1346598-44-4)
- Elacestrant Impurity 1 (CAS 1454782-98-9)
- Olaparib Impurity 28 (CAS 1187479-72-6)
- 3-Cyclopropylpyrazin-2-amine (CAS 1190969-76-6)
- 6-Ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline sulfate (CAS 3763-77-7)
- 1-[4-(4-Chloro-6-methyl-pyrimidin-2-yl)-piperidin-1-yl]-2-methoxy-ethanone (CAS 1316220-59-3)
- 2-(Ethylsulfanyl)-1,1-dimethoxyethane (CAS 51517-03-4)
- N-Nitroso-N-methyl-4-fluoroaniline (CAS 937-25-7)
- (S)-6-Bromo-3-hydroxy-3-methylindolin-2-one (CAS 2741438-67-3)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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