Atrasentan Impurity 181 CAS 1073590-82-5
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1073590-82-5 |
| Molecular Formula | C33H46N2O6 |
| Molecular Weight | 566.74 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Atrasentan Impurity 181 (CAS 1073590-82-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C33H46N2O6. Molecular weight: 566.74 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C33H46N2O6 |
| Molecular Weight | 566.74 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 |
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Recommended Standards
- Atrasentan Impurity 175 (CAS 1059051-98-7)
- 3,6,9,12,15,18,21,24-Octaoxaheptatriacontanoic acid (CAS 66161-61-3)
- Atrasentan Impurity 174 (CAS 1059051-97-6)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
- Celecoxib Impurity 9 (CAS 1061214-06-9)
- 6-[(3-Aminophenyl)methyl]-4,6-dihydro-4-methyl-2-(methylsulfinyl)-5H-thieno[2,3:4,5]pyrrolo[2,3-d]pyridazin-5-one (CAS 1221186-53-3)
- Methyl 9-(hydroxymethyl)-9H-purine-6-carboxylate (CAS 95121-26-9)
- 5-Methoxy-2-thiophenemethanamine (CAS 1061651-71-5)
- N-(4-(1H-Indol-3-yl)thiazol-2-yl)acetamide (CAS 189011-09-4)
- Valosin Peptide (VQY), porcine (CAS 99510-37-9)
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