Piribedil Impurity N3 CAS 129111-11-1
| CAS No. | 129111-11-1 |
| Molecular Formula | C8H9ClO2 |
| Molecular Weight | 172.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Piribedil Impurity N3 (CAS 129111-11-1), a pharmacopoeial impurity reference standard (molecular formula C8H9ClO2, MW 172.61 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Piribedil Impurity N3 (C8H9ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 172.61 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Piribedil Impurity N3 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 | C8H9ClO2 |
| Molecular Weight | 172.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
Related Piribedil Standards
- Piribedil Impurity N1 (CAS 75875-58-0)
- Piribedil Impurity 18 (CAS CATO-C4X-281318)
- Piribedil Impurity 2 (CAS CATO-C4X-28132)
- Piribedil Impurity 3 (CAS CATO-C4X-28133)
- Piribedil Impurity 20 (CAS 123492-93-3)
- Piribedil Impurity 4 (CAS CATO-C4X-28134)
- Piribedil Impurity 24 (CAS 1109275-97-9)
- Piribedil Impurity 12 (CAS CATO-C4X-281312)
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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