Atrasentan Impurity 149 CAS 1058350-31-4
| CAS No. | 1058350-31-4 |
| 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 149 (CAS 1058350-31-4), a pharmacopoeial impurity reference standard (molecular formula C34H48N2O6, MW 580.77 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Atrasentan Impurity 149 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 580.77 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Atrasentan Impurity 149 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 | 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 139 (CAS 1058349-18-0)
- Atrasentan Impurity 143 (CAS 1058349-56-6)
- Atrasentan Impurity 145 (CAS 1058350-11-0)
- Atrasentan Impurity 148 (CAS 1058350-27-8)
Recommended Standards
- Atrasentan Impurity 165 (CAS 1059043-32-1)
- Atrasentan Impurity 166 (CAS 1059043-38-7)
- Atrasentan Impurity 167 (CAS 1059043-40-1)
- Atrasentan Impurity 180 (CAS 1059052-58-2)
- Alectinib Impurity 33 ·xHCl (CAS 1256698-42-6(free base))
- Ketotifen Impurity 20 (CAS CATO-C4X-204620)
- Orforglipron Impurity 10 (CAS CATO-C4X-323410)
- Methyl 2-(4-(ethylsulfonyl)phenyl)acetate (CAS 1363179-14-9)
- 3'-O-(tert-butyldiMethylsilyl)-2'-deoxyadenosine (CAS 51549-31-6)
- Cholesteryl Decanoate (CAS 1183-04-6)
- Ethyl 5-chloro-2-methylnicotinate (CAS 868636-76-4)
- 1-(4-aminophenyl)-1H-pyrazole-3-carboxylic acid,HCl (CAS 1431968-02-3)
- N-(2-Hydroxyethyl)-N-methylbenzenesulfonamide (CAS 59724-60-6)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
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