Pomalidomide Impurity 31 CAS 610-27-5
| CAS No. | 610-27-5 |
| Molecular Formula | C8H5NO6 |
| Molecular Weight | 211.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pomalidomide Impurity 31 (CAS 610-27-5) is a certified pharmaceutical impurity reference standard with the molecular formula C8H5NO6 and a molecular weight of 211.13 g/mol.
Pomalidomide Impurity 31 (C8H5NO6) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C8H5NO6 |
| Molecular Weight | 211.13 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.) | 1957 |
| Nitrogen Atoms | 1 |
Related Pomalidomide Standards
- Pomalidomide Impurity 8 (CAS 603-11-2)
- Pomalidomide Impurity 62 (CAS CATO-C4X-135462)
- Pomalidomide Impurity 36 (CAS 641-70-3)
- Pomalidomide Impurity 37 (CAS 5466-84-2)
- Pomalidomide Impurity 46 (CAS 944709-53-9)
- Pomalidomide Impurity 7 (CAS 5434-21-9)
- Pomalidomide Impurity 53 (CAS 24184-33-6)
- Pomalidomide Impurity 48 (CAS CATO-C4X-135448)
Recommended Standards
- Vortioxetine Impurity 63 (CAS 1009-85-4)
- 2,6-Dichloro-2,6-dimethyl-heptan-4-one (CAS 66886-69-9)
- Glycopyrronium Bromide EP Impurity O (CAS 618-88-2)
- 5862-32-8 Mesitol, alpha(sup 2),alpha(sup 6)-dichloro- Phenol, 2,6-bis(chloromethyl)-4-methyl- (9CI) 3-06-00-01838 (Beilstein Handbook Reference) BRN 2091891 NSC 85480 alpha(sup 2),alpha(sup 6)-Dichloromesitol (CAS 5862-32-8)
- Tafluprost Impurity 12 (CAS CATO-C4X-216312)
- Rivaroxaban Impurity 7(S-isomer) (CAS 161596-47-0)
- Erlotinib Impurity 54 (CAS CATO-C4X-106954)
- 3-Cyclopropoxy-2-methylisonicotinonitrile (CAS 1243472-16-3)
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- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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