Selexipag Impurity 67 CAS CATO-C4X-196167
| CAS No. | CATO-C4X-196167 |
| Molecular Formula | C31H39N3O5 |
| Molecular Weight | 533.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Selexipag Impurity 67 (CAS CATO-C4X-196167), a pharmacopoeial impurity reference standard (molecular formula C31H39N3O5, MW 533.66 g/mol) used for the identification and quantification of trace impurities in APIs.
Selexipag Impurity 67 (C31H39N3O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures Selexipag Impurity 67 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 | C31H39N3O5 |
| Molecular Weight | 533.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Selexipag Standards
- Selexipag Impurity 69 (CAS CATO-C4X-196169)
- Selexipag Impurity 61 (CAS CATO-C4X-196161)
- Selexipag Impurity 70 (CAS CATO-C4X-196170)
- Selexipag Impurity 19 (CAS CATO-C4X-196119)
- Selexipag Impurity 40 (CAS CATO-C4X-196140)
- Selexipag-d6 (CAS 1265295-92-8)
- Selexipag (CAS 475086-01-2)
- Selexipag Impurity 38 (CAS CATO-C4X-196138)
Recommended Standards
- H-Ala-Pro-Val-5-[(2-aminoethyl)amino]-naphthalene-1-sulfonic acid (CAS 396077-59-1)
- Ethyl 5-(4-acetoxyphenyl)-2-(4-(diethylamino)benzylidene)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 324568-13-0)
- Gliquidone-d6 (CAS CATO-CS313704)
- (1S)-6''-(Diphenylphosphino)-N,N-dimethyl-[1,1':2',1'':2'',1'''-quaterphenyl]-3'-amine (CAS 1384895-80-0)
- Ubrogepant Impurity 8 (CAS CATO-C4X-34028)
- Ertapenem Impurity 33 (CAS 1199797-43-7&402955-37-7 (mixture))
- Atrasentan Impurity 14 (CAS 1140617-05-5)
- N-(4-(N-(4-Bromophenyl)sulfamoyl)phenyl)acetamide (CAS 19837-93-5)
- 3-Bromo-6-methoxy-2-(trifluoromethyl)pyridine (CAS 1214330-91-2)
- 2-Hydrazineyl-1-isopropyl-4-methyl-1H-imidazole trihydrochloride (CAS 1855907-50-4)
- Apixaban Impurity 105 (CAS 70736-27-5)
- 2-Hydroxy-1-[4-(2-hydroxyethyl)phenyl]-2-methylpropan-1-one (CAS 106797-54-0)
- 2-(2-Methyl-4-oxo-7-(trifluoromethyl)quinolin-1(4H)-yl)acetonitrile (CAS 1210270-86-2)
- Semaglutide impurity 104(Fmoc-D-His-Aib) (CAS 2171211-18-8)
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