Pomalidomide Impurity 39 CAS 2093416-31-8
| CAS No. | 2093416-31-8 |
| Molecular Formula | C21H28N4O7 |
| Molecular Weight | 448.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Pomalidomide Impurity 39 (CAS 2093416-31-8), a pharmacopoeial impurity reference standard (molecular formula C21H28N4O7, MW 448.47 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Pomalidomide Impurity 39 (C21H28N4O7) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
As a certified reference material (CRM), Pomalidomide Impurity 39 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H28N4O7 |
| Molecular Weight | 448.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 4 |
Related Pomalidomide Standards
- Pomalidomide-CO-C5-Br (CAS 2227423-38-1)
- Pomalidomide-5'-PEG3-propargyl (CAS 2230825-39-3)
- Pomalidomide-PEG3-propargyl (CAS 2138439-57-1)
- Pomalidomide-acetamido-O-PEG1-C2-Cl (CAS 2162120-92-3)
- Pomalidomide-C6-Br (CAS 2355289-53-9)
- Pomalidomide-CO-C4-Br (CAS 2162120-76-3)
- Pomalidomide-amino-PEG3-NH2 (CAS 2380273-74-3)
- Pomalidomide-5'-PEG2-C2-acid (CAS 2412056-45-0)
Recommended Standards
- CAS 2446474-09-3 (CAS 2446474-09-3)
- Crisaborole Impurity 38 (CAS 2254541-79-0)
- Pranidipine (CAS 99522-79-9)
- Ethyl cellulose (CAS 9004-57-3)
- Amlodipine Impurity 143 (CAS CATO-C4X-1095143)
- Riboflavin EP Impurity B (CAS 1086-80-2)
- Aripiprazole Impurity N9 (CAS 870765-38-1)
- (R)-1-(3-bromophenyl)-N-methylethan-1-amine hydrochloride (CAS 2366997-08-0)
- 4-Chloro-2-phenylpyrazolo[1,5-a]pyrazine-3-carbaldehyde (CAS 1707668-15-2)
- N-(4-Fluorobenzyl)-1-(5-fluorothiophen-2-yl)methanamine hydrochloride (CAS 1856065-29-6)
- 6-tert-Butylpyridine-3-sulfonyl chloride (CAS 1037241-40-9)
- (S,S)-Hydroxy Bupropion (CAS 192374-14-4)
- 2-Fluoro-5-methoxy-4-methylbenzaldehyde (CAS 1378655-94-7)
- Palmitoyl Tripeptide-8 TFA salt (CAS 936544-53-5)
Why CATO?
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