Pimavanserin Impurity 8 CAS 955997-87-2
| CAS No. | 955997-87-2 |
| Molecular Formula | C23H32N2O3 |
| Molecular Weight | 384.51 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.
Pimavanserin Impurity 8 (CAS 955997-87-2) is a certified pharmaceutical impurity reference standard with the molecular formula C23H32N2O3 and a molecular weight of 384.51 g/mol.
Based on its molecular formula C23H32N2O3, Pimavanserin Impurity 8 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 384.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H32N2O3 |
| Molecular Weight | 384.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Pimavanserin Standards
- Pimavanserin Impurity 28 (CAS CATO-C4X-193828)
- Pimavanserin Impurity 41 (CAS CATO-C4X-193841)
- Pimavanserin Impurity 9 (CAS CATO-C4X-19389)
- Pimavanserin Impurity 18 (CAS CATO-C4X-193818)
- Pimavanserin Impurity 13 (CAS 639863-77-7)
- Pimavanserin Impurity 39 (CAS CATO-C4X-193839)
- Pimavanserin Impurity 44 (CAS CATO-C4X-193844)
- Pimavanserin Impurity 10 (CAS CATO-C4X-193810)
Recommended Standards
- Methylprednisolone Acetate EP Impurity H (CAS CATO-C4X-191960)
- 17-Beta-Estradiol 3,17-Dipropionate (CAS 113-38-2)
- Methylprednisolone Acetate EP Impurity H (E-isomer) (CAS CATO-C4X-191946)
- Megestrol-17-Acetate (CAS 595-33-5)
- Tenofovir Impurity 69 (CAS 1878175-74-6)
- Ceritinib Impurity 85 (CAS 761440-17-9)
- Ozanimod Impurity 27 (CAS CATO-C4X-290227)
- 1-(4-Bromo-2-chlorophenyl)-2,5-dimethyl-1H-pyrrole (CAS 906166-50-5)
- 5-Bromo-N-(2,6-dimethylphenyl)imidazo[1,5-a]pyrazin-8-amine (CAS 849200-67-5)
- (1-(4-Chlorophenyl)-1H-tetrazol-5-yl)methanamine hydrochloride (CAS 1177348-45-6)
- 3-Amino-4-chloro-N-(2-hydroxy-1,1-dimethylethyl)-benzenesulfonamide (CAS 871571-54-9)
- Methyl N-(4-ethylphenyl)-N-[(4-methylphenyl)sulfonyl]glycinate (CAS 884987-64-8)
- 6-(3-chloro-4-methylphenyl)pyrimidin-4-amine (CAS 1550535-53-9)
- Tumor Targeted Pro-Apoptotic Peptide (CAS 1926163-30-5)
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