4-(4-Nitrophenyl)-2-piperazinone CAS 223785-99-7
| CAS No. | 223785-99-7 |
| Molecular Formula | C10H11N3O3 |
| Molecular Weight | 221.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(4-Nitrophenyl)-2-piperazinone (CAS 223785-99-7), molecular formula C10H11N3O3 and molecular weight 221.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H11N3O3, 4-(4-Nitrophenyl)-2-piperazinone contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 221.21 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H11N3O3 |
| Molecular Weight | 221.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 2020 |
| Nitrogen Atoms | 3 |
Related Nitrophenyl Standards
- (S)-3-(3-Nitrophenyl)piperazin-2-one (CAS 1228556-73-7)
- (R)-3-(4-Nitrophenyl)piperazin-2-one (CAS 1228561-34-9)
- (R)-3-(3-Nitrophenyl)piperazin-2-one (CAS 1228568-34-0)
- (R)-3-(2-Nitrophenyl)piperazin-2-one (CAS 1228570-63-5)
- 5-Methyl-4-(4-nitrophenyl)pyrazolidin-3-one (CAS 13051-13-3)
- 1-Methyl-3-(3-nitrophenyl)imidazolidin-2-one (CAS 1522718-34-8)
- 1-(3-Nitrophenyl)cyclobutanecarboxylic Acid (CAS 180080-87-9)
- 1-(4-Nitrophenyl)-3-(prop-2-en-1-yl)urea (CAS 194788-54-0)
Recommended Standards
- 4-(4-Methoxybenzyl)oxazolidine-2,5-dione (CAS 61777-03-5)
- 4-(Benzo[c][1,2,5]oxadiazol-4-ylamino)butanoic acid (CAS 89160-46-3)
- 4-(3-Oxomorpholino)benzoic acid (CAS 720720-60-5)
- 4,7-Dimethoxy-1h-indole-2-carboxylic acid (CAS 31271-83-7)
- 4-Methyl-5,6,7,8-tetrahydroquinolin-2-amine (CAS 179555-21-6)
- 1-(Adamantan-1-yl)-3-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea (CAS 548748-67-0)
- (-)-Ageloxime D (CAS 1219817-25-0)
- 2,3-Dimethylhex-5-en-3-ol (CAS 19550-90-4)
- N-(4-(Trifluoromethyl)phenyl)quinazolin-4-amine (CAS 849589-40-8)
- 3-Amino-4-chloro-N-cyclohexylbenzenesulfonamide (CAS 1036534-16-3)
- cis-2-(3-aminocyclobutyl)acetic acid;hydrochloride (CAS 1523571-91-6)
- Methylbis(2-methylprop-2-en-1-yl)amine (CAS 52444-15-2)
- 3-(tert-Butoxy)-5-cyclopropoxy-N,N-dimethylisonicotinamide (CAS 1243445-81-9)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
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