Pivampicillin EP Impurity A CAS CATO-C4X-23221
| CAS No. | CATO-C4X-23221 |
| Molecular Formula | C23H32N2O7S |
| Molecular Weight | 480.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pivampicillin EP Impurity A.
CATO supplies Pivampicillin EP Impurity A (CAS CATO-C4X-23221), a pharmacopoeial impurity reference standard (molecular formula C23H32N2O7S, MW 480.57 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H32N2O7S, Pivampicillin EP Impurity A contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 480.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Pivampicillin EP Impurity A 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 | C23H32N2O7S |
| Molecular Weight | 480.57 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Pivampicillin Standards
Recommended Standards
- 7-(bromomethyl)-3-(triphenylmethyl)-3H-imidazo[4,5-b]pyridine (CAS 618900-48-4)
- 3-(4-(2'-(N-(tert-Butyl)sulfamoyl)-[1,1'-biphenyl]-3-carboxamido)phenyl)propanoic acid (CAS 2146094-22-4)
- 2-(4-Bromophenyl)-6,7-dichloro-4-(4-chlorophenyl)phthalazin-1(2H)-one (CAS 478066-03-4)
- 3-(4-Tosylpiperazine-1-carbonyl)-7,8,9,10-tetrahydroazepino[2,1-b]quinazolin-12(6H)-one (CAS 854134-90-0)
- Indoxacarb Impurity 7 (CAS 144171-39-1)
- Siponimod impurity 19 (CAS 2918890-06-7)
- Betamethasone Impurity 89 (CAS CATO-C4X-143789)
- Hexadecyl L-prolinate (CAS 97010-18-9)
- Febuxostat Impurity 93 (CAS CATO-C4X-116293)
- Berberine Chloride hydrate (CAS 141433-60-5)
- (E)-4-(Benzylideneamino)benzonitrile (CAS 17224-21-4)
- 2,3-Dimethyl-4-nitro-1H-indole (CAS 13687-74-6)
- Olaparib Impurity 85 (CAS CATO-C4X-113585)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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