Atrasentan Impurity 65 CAS 403614-23-3
| CAS No. | 403614-23-3 |
| Molecular Formula | C31H43N3O6 |
| Molecular Weight | 553.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Atrasentan Impurity 65 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.
As a process- or degradation-related impurity, Atrasentan Impurity 65 (CAS 403614-23-3, C31H43N3O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C31H43N3O6, Atrasentan Impurity 65 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 553.70 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).
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 | C31H43N3O6 |
| Molecular Weight | 553.70 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.) | 2025 |
| Nitrogen Atoms | 3 |
Related Atrasentan Standards
- Atrasentan Impurity 116 (CAS 220584-55-4)
- Atrasentan Impurity 123 (CAS 1063835-87-9)
- Atrasentan Impurity 124 (CAS 1063835-90-4)
- Atrasentan Impurity 113 (CAS 1068157-02-7)
- Atrasentan Impurity 79 (CAS 1058552-21-8)
- Atrasentan Impurity 111 (CAS 1059056-88-0)
- Atrasentan Impurity 131 (CAS 1058349-04-4)
- Atrasentan Impurity 132 (CAS 1058349-05-5)
Recommended Standards
- 2-(3,4-Dimethylbenzyl)-3-(3-(3-fluoro-4-(methylsulfonamido)benzyl)-1-hydroxythioureido)propyl pivalate (CAS 681810-30-0)
- 1-Nonadecanoyl-2-hydroxy-sn-glycero-3-phosphocholine (CAS 108273-88-7)
- Clarithromycin impurity 16(See C4X-100217) (CAS CATO-C4X-100216)
- IKX7W49NLN 931395-42-5 Dusquetide [USAN:INN] L-Alaninamide, L-arginyl-L-isoleucyl-L-valyl-L-prolyl- L-Arginyl-L-isoleucyl-L-valyl-L-prolyl-L-alaninamide SGX94 Dusquetide UNII-IKX7W49NLN SGX942 IMX 942 RIVPA SGX 94 (CAS 931395-42-5)
- Baclofen impurity 20 (CAS 137310-15-7)
- CAS 170510-09-0 (CAS 170510-09-0)
- Hexamidine Impurity 4 (CAS 74065-84-2)
- (2R,3R,4S,5R)-2-(6-((2,6-Dimethylphenyl)amino)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 29204-51-1)
- N-(5-bromo-2-methoxybenzyl)cyclopentanamine (CAS 418779-19-8)
- 2,3-Dichloro-6-(difluoromethoxy)phenacyl chloride (CAS 1806351-95-0)
- (2Z)-N-[2-(Morpholin-4-yl)ethyl]-3-(naphthalen-1-yl)prop-2-enamide (CAS 329779-54-6)
- 2-(4-Chlorophenyl)-5-methylisoxazol-3(2H)-one (CAS 61563-93-7)
- n-(2-Chlorobenzyl)pyrimidin-2-amine (CAS 23676-58-6)
- Peptide 439 (CAS CATO-CPTD788439)
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