Aprepitant impurity 31 CAS 657419-48-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 657419-48-2 |
| Molecular Formula | C21H27NO4S |
| Molecular Weight | 389.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Aprepitant impurity 31 (CAS 657419-48-2) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C21H27NO4S. Molecular weight: 389.51 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C21H27NO4S |
| Molecular Weight | 389.51 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Aprepitant Standards
- Aprepitant impurity 35 (CAS 395683-22-4)
- Aprepitant impurity 36 (CAS CATO-C4X-237936)
- Aprepitant Impurity 36 (CAS 638990-20-2)
- Aprepitant Impurity 26 (CAS CATO-C4X-116826)
- Aprepitant Impurity 31 (CAS 2410426-96-7)
- Aprepitant Impurity 37 (CAS CATO-C4X-114137)
- Aprepitant Impurity 22 (CAS 934540-48-4)
- Aprepitant Impurity 48 (CAS 380499-07-0)
Recommended Standards
- N-((1'-benzyl-4',5'-dimethyl-1'H-[1,2'-bipyrrol]-3'-yl)methyl)thiophene-2-carboxamide (CAS 478077-10-0)
- 1-(4-(methylsulfonyl)phenyl)-2-(propylamino)ethyl 2-(p-tolyl)acetate (CAS CATO-C4X-237966)
- Ethyl 4-ethyl-5-(((2-methoxyethyl)thio)carbonyl)-6-methyl-2-phenyl-1,4-dihydropyridine-3-carboxylate (CAS 212200-21-0)
- Moxifloxacin impurity 178 (CAS 934841-13-1)
- Nefopam Impurity 5 (CAS 13678-16-5)
- 2-Amino-1-[3-(benzyloxy)phenyl]propan-1-ol (CAS 1940-82-5)
- n-((5-Bromothiophen-2-yl)methyl)-N-ethyl-2-methoxyacetamide (CAS 1252116-99-6)
- 4-Fluoro-1-methoxy-2-methylbenzene (CAS 399-54-2)
- 2-(2,4-Difluorophenoxy)pyridine-4-carbonitrile (CAS 924832-54-2)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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