Ampicillin Impurity 41 CAS CATO-C4X-144341
| CAS No. | CATO-C4X-144341 |
| Molecular Formula | C29H44N6O4S |
| Molecular Weight | 572.76 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.
CATO supplies Ampicillin Impurity 41 (CAS CATO-C4X-144341), a pharmacopoeial impurity reference standard (molecular formula C29H44N6O4S, MW 572.76 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Ampicillin Impurity 41 (C29H44N6O4S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Ampicillin Impurity 41 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 | C29H44N6O4S |
| Molecular Weight | 572.76 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Ampicillin Standards
- Ampicillin Impurity 89 (CAS CATO-C4X-144389)
- Ampicillin Impurity 31 (CAS CATO-C4X-144331)
- Ampicillin Impurity S (CAS CATO-C4X-144332)
- Ampicillin Impurity 34 (CAS CATO-C4X-144334)
- Ampicillin Impurity 60 (CAS CATO-C4X-144360)
- Ampicillin Impurity 93 (CAS CATO-C4X-144393)
- Ampicillin Impurity 78 (CAS CATO-C4X-144378)
- Ampicillin Impurity 29 (CAS CATO-C4X-144329)
Recommended Standards
- Dronedarone N-Oxide (CAS 1638586-56-7)
- (2S,3S,4S,5R,6R)-6-(((S,Z)-3-(2-((1R,3aS,7aR,E)-1-((2R,5R,E)-5,6-Dimethylhept-3-en-2-yl)-7a-methyloctahydro-4H-inden-4-ylidene)ethylidene)-4-methylenecyclohexyl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylic acid (CAS 57803-96-0)
- Dronedarone Impurity 28 (CAS CATO-C4X-109228)
- Nonylbenzene-PEG8-OH (CAS 41506-14-3)
- Cyanocobalamin Impurity 31 (CAS 121483-62-3)
- Olopatadine lmpurity 56 (CAS CATO-C4X-171856)
- Avacopan Impurity 2 (CAS 1346623-07-1)
- 8-Bromo-1,5-naphthyridine-3-carboxylic acid (CAS 2007916-63-2)
- 4-Iodo-3-methoxypyridine (CAS 1331850-50-0)
- (4,4-Difluoro-1-methylcyclohexyl)methanamine hydrochloride (CAS 1707602-10-5)
- 3-Oxo-3-(5,6,7,8-tetrahydronaphthalen-2-yl)propanenitrile (CAS 2623-25-8)
- 3,4,2',4',6'- pentamethoxychalcone (CAS 76650-20-9)
- 2-Propynoicacid,3-(1H-pyrazol-4-yl)- (CAS 1342026-69-0)
- Semaglutide238 (CAS CATO-C4X-2226238)
Why CATO?
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