Ampicillin EP Impurity F CAS 2197189-82-3
| CAS No. | 2197189-82-3 |
| Molecular Formula | C15H21N3O3S |
| Molecular Weight | 323.41 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.
Ampicillin EP Impurity F (CAS 2197189-82-3) is a certified pharmaceutical impurity reference standard with the molecular formula C15H21N3O3S and a molecular weight of 323.41 g/mol.
Based on its molecular formula C15H21N3O3S, Ampicillin EP Impurity F contains a nitrogen-containing heterocyclic scaffold, 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 323.41 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H21N3O3S |
| Molecular Weight | 323.41 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ampicillin Standards
- Ampicillin Impurity 79 (CAS CATO-C4X-144379)
- Ampicillin Impurity 23 (CAS CATO-C4X-144323)
- Ampicillin Impurity 68 (CAS CATO-C4X-144368)
- Ampicillin EP Impurity J (CAS 6489-58-3)
- Ampicillin impurity 65 (CAS 55675-51-9)
- Ampicillin Impurity 77 (CAS CATO-C4X-144377)
- Ampicillin Impurity 46 (CAS CATO-C4X-144346)
- Ampicillin Impurity 100 (CAS CATO-C4X-1443100)
Recommended Standards
- 3-Thiophenecarboxylicacid, 2-amino-4-[1,1'-biphenyl]-4-yl-, ethyl ester 307343-50-6 CTK4G5782 (CAS 307343-50-6)
- Gliclazide EP Impurity F (CAS 1076198-18-9)
- Tert-butyl 4-((4-amino-2-fluorophenyl)(methyl)amino)piperidine-1-carboxylate (CAS 952285-83-5)
- N-decylphosphatidylcholine (CAS 70504-28-8)
- Dronedarone Impurity 48 (CAS CATO-C4X-109248)
- Bicalutamide Impurity 31 (CAS CATO-C4X-101331)
- Diclofenac Sodium Impurity 35 (CAS 13625-57-5)
- 5-(Bromomethyl)-2-ethoxy-1,3-difluorobenzene (CAS 1017779-38-2)
- N-((4-Amino-2-methylpyrimidin-5-yl)methyl)nicotinamide (CAS 105801-73-8)
- 4-[(E)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methylidene}hydrazin-1-yl]benzonitrile (CAS 338420-08-9)
- 3-chloro-7-nitro-1H-indazole (CAS 74209-33-9)
- 5-(3-Chlorophenyl)-3-(4-nitrophenyl)-1,2,4-oxadiazole (CAS 690989-63-0)
- 4-(4-Aminophenyl)-5-(methylsulfonyl)pyrimidin-2-amine (CAS 1708445-09-3)
- C-telopeptide (CAS 162929-64-8)
Why CATO?
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