Cycloserine Impurity N1 CAS 15996-22-2
| CAS No. | 15996-22-2 |
| Molecular Formula | C6H6N2O2 |
| Molecular Weight | 138.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cycloserine Impurity N1 (CAS 15996-22-2) is a certified pharmaceutical impurity reference standard with the molecular formula C6H6N2O2 and a molecular weight of 138.12 g/mol.
Based on its molecular formula C6H6N2O2, Cycloserine Impurity N1 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 138.12 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 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.
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 | C6H6N2O2 |
| Molecular Weight | 138.12 g/mol |
| Purity | 97%+ |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 2 |
Related Cycloserine Standards
Recommended Standards
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- N-Formyl-1H-pyrrole-2-carboxamide (CAS 160156-23-0)
- 4-Methyl-5-pyrimidinecarboxylic acid (CAS 157335-92-7)
- 5,6-Dihydrofuro[2,3-d]pyrimidin-4-ol (CAS 16285-50-0)
- Gadoteridol Impurity 5 (CAS 148407-91-4)
- Oxacillin Impurity 12 (CAS CATO-C4X-232112)
- Pivampicillin EP Impurity A (CAS CATO-C4X-23221)
- tert-Decanethiol (CAS 30174-58-4)
- tert-Butyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9-azabicyclo[3.3.1]non-2-ene-9-carboxylate (CAS 1313034-25-1)
- 2-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)acetic Acid (CAS 4113-97-7)
- Ethyl 1-benzyl-5-hydroxy-1H-pyrazole-3-carboxylate (CAS 70608-99-0)
- Etrasimod Impurity 75 (CAS CATO-C4X-321475)
- Ethyl 3-amino-3-(3,4-dichlorophenyl)propanoate (CAS 380842-80-8)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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