Atrasentan Impurity 113 CAS 1068157-02-7
| CAS No. | 1068157-02-7 |
| Molecular Formula | C31H42N2O7 |
| Molecular Weight | 554.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Atrasentan Impurity 113.
Atrasentan Impurity 113 (CAS 1068157-02-7) is a certified pharmaceutical impurity reference standard with the molecular formula C31H42N2O7 and a molecular weight of 554.68 g/mol.
Based on its molecular formula C31H42N2O7, Atrasentan Impurity 113 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 554.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Atrasentan Impurity 113 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 | C31H42N2O7 |
| Molecular Weight | 554.68 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.) | 1988 |
| Nitrogen Atoms | 2 |
Related Atrasentan Standards
- Atrasentan Impurity 79 (CAS 1058552-21-8)
- Atrasentan Impurity 116 (CAS 220584-55-4)
- Atrasentan Impurity 123 (CAS 1063835-87-9)
- Atrasentan Impurity 124 (CAS 1063835-90-4)
- Atrasentan Impurity 65 (CAS 403614-23-3)
- Atrasentan Impurity 111 (CAS 1059056-88-0)
- Atrasentan Impurity 131 (CAS 1058349-04-4)
- Atrasentan Impurity 132 (CAS 1058349-05-5)
Recommended Standards
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- Tris(4-((E)-2-(pyridin-2-yl)vinyl)phenyl)amine (CAS 952487-14-8)
- Amiodarone Hydrochloride EP Impurity H (CAS 869-24-9)
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- 2-[(4-aminophenyl)methyl]-1,3-thiazole-4-carboxylic acid (CAS 1225967-38-3)
- 1-[(4-Chlorophenyl)methyl]-6-(3,4-dichlorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 252059-24-8)
- 1-(4-Hydroxy-6-methylpyrimidin-2-yl)-3-(p-tolyl)guanidine (CAS 15233-35-9)
- Leukotriene D4 (CAS 73836-78-9)
- 2-Methyl-4-(trifluoromethoxy)benzonitrile (CAS 261951-92-2)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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