Alvimopan Impurity 18 CAS 145340-45-0
| CAS No. | 145340-45-0 |
| Molecular Formula | C17H25NO |
| Molecular Weight | 259.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Alvimopan Impurity 18 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Alvimopan Impurity 18 (CAS 145340-45-0), molecular formula C17H25NO and molecular weight 259.39 g/mol, is a CATO reference standard with documented purity and traceability.
Alvimopan Impurity 18 (C17H25NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Alvimopan Impurity 18 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 | C17H25NO |
| Molecular Weight | 259.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
Related Alvimopan Standards
- Alvimopan Impurity 20 (CAS 1314751-83-1)
- Alvimopan Impurity 1 (CAS 701-07-5)
- Alvimopan Impurity 2 (CAS 6967-88-0)
- Alvimopan Impurity 27 (CAS 119193-19-0)
- Alvimopan Impurity 28 (CAS 145678-87-1)
- Alvimopan Impurity 12 (CAS 1980007-99-5)
- Alvimopan Impurity N12 (CAS 59381-63-4)
- Alvimopan impurity 15 (CAS CATO-C4X-114515)
Recommended Standards
- (3R,4S)-1,2,3,4-Tetrahydro-4-(3-isopropoxyphenyl)-1,3,4-trimethylpyridine (CAS 143919-33-9)
- Eperisone Impurity 8 (CAS 163437-01-2)
- N-(2-Hydroxy-2-methyl-4-(methylthio)butyl)thiophene-2-carboxamide (CAS 1396751-24-8)
- N-(2-Hydroxy-2-methyl-3-(methylthio)propyl)-2-(thiophen-3-yl)acetamide (CAS 1698530-05-0)
- 5-Fluoro-2-nitrobenzamide (CAS 77206-97-4)
- 2-Ethoxynicotinaldehyde (CAS 885278-07-9)
- 2-Methyl-2-cyclopentenone (CAS 1120-73-6)
- 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-4-(2-phenylacetyl)-1H-pyrrole-2-carbonitrile (CAS 338397-77-6)
- 1-(pyridin-4-yl)guanidine (CAS 425376-94-9)
- 2-((5-Mercapto-1,3,4-thiadiazol-2-yl)thio)propanoic acid (CAS 60725-23-7)
- 10-Guanidinodecanoic Acid (CAS 73427-68-6)
- 1-Ethoxy-4-ethyl-5-fluoro-2-nitrobenzene (CAS 1089282-86-9)
- 3-(p-Tolyl)-2,5-dihydrofuran (CAS 859444-21-6)
- Allo-D-Ile27-Tirzepatide (CAS CATO-CPTD788961)
Why CATO?
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