Bupivacaine Impurity 32 CAS 2199805-25-7
| CAS No. | 2199805-25-7 |
| Molecular Formula | C13H19NO2 |
| Molecular Weight | 221.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Bupivacaine Impurity 32 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.
Bupivacaine Impurity 32 (CAS 2199805-25-7) is a certified pharmaceutical impurity reference standard with the molecular formula C13H19NO2 and a molecular weight of 221.30 g/mol.
The molecular framework of Bupivacaine Impurity 32 (C13H19NO2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C13H19NO2 |
| Molecular Weight | 221.30 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1998 |
| Nitrogen Atoms | 1 |
Related Bupivacaine Standards
- Bupivacaine EP Impurity A (CAS 39627-98-0)
- Bupivacaine EP Impurity C (CAS 1797894-80-4)
- Bupivacaine EP Impurity B (CAS 15883-20-2)
- Bupivacaine Impurity 41 (CAS 760928-28-7)
- Bupivacaine Impurity 37 (CAS CATO-C4X-148237)
- Bupivacaine Impurity 13 (CAS 51989-48-1)
- Bupivacaine Impurity 20 (CAS 15116-13-9)
- Bupivacaine Impurity 7 (CAS 920007-12-1)
Recommended Standards
- Salbutamol Impurity 84 (CAS CATO-C4X-117684)
- Tetracaine Impurity 17 (CAS 1056627-94-1)
- Ivabradine impurity 91 (CAS CATO-C4X-111991)
- Tetracaine Impurity 25 (CAS 512175-79-0)
- Sugammadex Impurity N8 (CAS 168296-33-1)
- Nemonoxacin Impurity 31 (CAS CATO-C4X-312831)
- Tofacitinib Impurity 235 (CAS CATO-C4X-1079235)
- 3-((3-(Dimethylamino)propyl)amino)thietane 1,1-dioxide (CAS 1864467-89-9)
- Cefprozil Impurity 51 (CAS CATO-C4X-149251)
- Tert-butyl ((1R,2R)-2-amino-1,2-diphenylethyl)carbamate (CAS 1227946-98-6)
- 6-Ethynyl-4-methylpyridin-2-amine (CAS 1582754-31-1)
- 1-(3,4-Dihydroxy-2-methoxyphenyl)ethanone (CAS 27829-93-2)
- Ethyl 5-methylpyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1697188-73-0)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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