Atrasentan Impurity 139 CAS 1058349-18-0
| CAS No. | 1058349-18-0 |
| Molecular Formula | C34H48N2O6 |
| Molecular Weight | 580.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Atrasentan Impurity 139 (CAS 1058349-18-0), a pharmacopoeial impurity reference standard (molecular formula C34H48N2O6, MW 580.77 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Atrasentan Impurity 139 (C34H48N2O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 580.77 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Atrasentan Impurity 139 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C34H48N2O6 |
| Molecular Weight | 580.77 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 105 (CAS 1059052-12-8)
- Atrasentan Impurity 114 (CAS 1073746-06-1)
- Atrasentan Impurity 133 (CAS 1058349-06-6)
- Atrasentan Impurity 137 (CAS 1058349-12-4)
- Atrasentan Impurity 143 (CAS 1058349-56-6)
- Atrasentan Impurity 145 (CAS 1058350-11-0)
- Atrasentan Impurity 148 (CAS 1058350-27-8)
- Atrasentan Impurity 149 (CAS 1058350-31-4)
Recommended Standards
- Tirofiban Impurity 17 (CAS CATO-C4X-125417)
- Atrasentan Impurity 165 (CAS 1059043-32-1)
- Ciclesonide Impurity 1 (CAS 1005416-98-7)
- Atrasentan Impurity 166 (CAS 1059043-38-7)
- Papaverine impurity 19 HCl (CAS CATO-C4X-206719)
- Felodipine Impurity 16 (CAS 52334-51-7)
- Nicorandil Impurity 12 (CAS 83440-03-3)
- Tert-butyl (5-aminopentyl)carbamate hydrochloride (CAS 77835-31-5)
- 2,3-dimethyl-6,7-dihydro-5H-indazol-4-one (CAS 1356596-20-7)
- 3-(4-chlorophenyl)-4-imino-3,4-dihydro-2(1H)-quinazolinethione (CAS 477889-21-7)
- 4,5-Dimethyl-1H-indole-2-carbonyl chloride (CAS 79112-13-3)
- N2,N4,N6-Tris(4-(2H-tetrazol-5-yl)phenyl)-1,3,5-triazine-2,4,6-triamine (CAS 2410710-17-5)
- 1-(2-Nitrophenyl)-3-(piperidin-4-yl)urea hydrochloride (CAS 1233952-98-1)
- FMRF Amide Related Peptide. (CAS 149471-12-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com