Picosulfate Impurity N1 CAS 22945-62-6
| CAS No. | 22945-62-6 |
| Molecular Formula | C12H9NO2 |
| Molecular Weight | 199.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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.
As a process- or degradation-related impurity, Picosulfate Impurity N1 (CAS 22945-62-6, C12H9NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Picosulfate Impurity N1 (C12H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 199.21 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C12H9NO2 |
| Molecular Weight | 199.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Picosulfate Standards
- Picosulfate Impurity 10 (CAS 33077-70-2)
- Picosulfate impurity 18 (CAS 26838-86-8)
- Picosulfate impurity 23 (CAS 158839-52-2)
- Picosulfate impurity 27 (CAS CATO-C4X-123727)
- Picosulfate Impurity 8 (CAS 58498-11-6)
- Picosulfate Impurity 14 (CAS 4783-68-0)
- Picosulfate impurity 20 (CAS 181423-88-1)
- Picosulfate Impurity 12 (CAS 105745-58-2)
Recommended Standards
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- Betamethasone Impurity 31 (CAS CATO-C4X-143731)
- Isosorbide Dinitrate 19 (CAS 1932354-37-4)
- Rosuvastatin Impurity 112 (CAS CATO-C4X-1169112)
- Pigment Red 57 (CAS 5281-04-9)
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- Glycyrrhizic acid ammonium salt trihydrate (CAS 911217-00-0)
- 2-Phenylazepane hydrochloride (CAS 3466-83-9)
- 1-Chloro-7-fluoro-1,2,3,4-tetrahydronaphthalene (CAS 1082399-51-6)
- 2-Bromo-4-cyclobutylthiazole (CAS 1159820-59-3)
- (Asp28)-Exenatide trifluoroacetate salt (CAS 1678417-24-7)
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