Xanomeline Impurity 18 CAS 131986-29-3
| CAS No. | 131986-29-3 |
| Molecular Formula | C9H13N3OS |
| Molecular Weight | 211.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Xanomeline Impurity 18 (CAS 131986-29-3, C9H13N3OS) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, Xanomeline Impurity 18 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 211.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H13N3OS |
| Molecular Weight | 211.28 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Xanomeline Standards
- Xanomeline impurity N1 (CAS 159059-10-6)
- Xanomeline impurity 29 (CAS CATO-C4X-330129)
- Xanomeline Impurity 16 (CAS CATO-C4X-330116)
- Xanomeline impurity 59 (CAS CATO-C4X-330159)
- Xanomeline impurity 60 (CAS 1483591-15-6)
- Xanomeline impurity 41 (CAS CATO-C4X-330141)
- Xanomeline impurity 39 (CAS CATO-C4X-330139)
- Xanomeline impurity 49 (CAS 141136-36-9)
Recommended Standards
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- H-D-Cys(Bzl)-OH (CAS 23032-53-3)
- Carglumic Acid impurity 11 (CAS 888324-09-2（free base）)
- Methotrexate Impurity 32 (CAS 82778-08-3)
- Orforglipron Impurity 58 (CAS 2212021-58-2)
- 2-((tert-Butoxycarbonyl)amino)-3-(pyridin-2-yl)propanoic acid (CAS 119434-71-8)
- Diethyl 2-oxo-1H-benzo[d]imidazole-1,3(2H)-dicarboxylate (CAS 161468-57-1)
- 7-Bromo-2-methyl-3,5-dihydro-4H-pyrrolo[3,2-d]pyrimidin-4-one (CAS 93587-24-7)
- Ibuprofen Piconol Impurity (CAS 64622-45-3)
- 4-Chloro-2-(3-chloro-4-fluorophenyl)-5-(1-methylhydrazino)-3-(2H)-pyridazinone (CAS 175135-72-5)
- Methyl 1-((4-acetamidophenyl)sulfonyl)piperidine-4-carboxylate (CAS 303994-56-1)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
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