Buspirone EP Impurity I Oxalate CAS 2725354-99-2
| CAS No. | 2725354-99-2 |
| Molecular Formula | C21H30ClN5O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Buspirone EP Impurity I Oxalate (CAS 2725354-99-2) is a certified pharmaceutical impurity reference standard with the molecular formula C21H30ClN5O2C2H2O4 and a molecular weight of 509.99 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Buspirone EP Impurity I Oxalate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 509.99 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.
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 Buspirone EP Impurity I Oxalate 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 | C21H30ClN5O2 C2H2O4 |
| Molecular Weight | 509.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Buspirone Standards
- Buspirone impurity 01 (CAS 105496-33-1)
- Buspirone EP Impurity K (CAS 1075-89-4)
- Buspirone EP Impurity A-d8 (Buspirone USP Related Compound A-d8) (CAS 1309283-31-5)
- Buspirone Impurity 9 (CAS 13220-24-1)
- Buspirone Impurity 21 (CAS 137583-05-2)
- Buspirone Impurity 24 (CAS 1800242-04-9)
- Buspirone Impurity 20 (CAS 1821194-01-7)
- Buspirone Impurity 23 (CAS 20261-27-2)
Recommended Standards
- Pitavastatin Impurity 113 (CAS CATO-C4X-1037113)
- Dapagliflozin Impurity 191 (CAS 1616259-44-9)
- Clascoterone Impurity 8 (CAS CATO-C4X-33318)
- Policresulen impurity 21 (CAS 102014-39-1)
- ethyl 4-chloro-6-(trifluoromethyl)pyridine-3-carboxylate (CAS 1196146-35-6)
- 3,5-Difluoroisatoic anhydride (CAS 1022959-48-3)
- Cyclopentanol (CAS 96-41-3)
- rel-((3S,4S)-Tetrahydrofuran-3,4-diamine) (CAS 117180-87-7)
- 3-(1-(((9H-Fluoren-9-yl)methoxy)carbonyl)pyrrolidin-2-yl)propanoic acid (CAS 1873205-29-8)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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