Pomalidomide-PEG<SUB>1</SUB>-CO<SUB>2</SUB>H CAS 2139348-60-8
| CAS No. | 2139348-60-8 |
| Molecular Formula | C18H19N3O7 |
| Molecular Weight | 389.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Pomalidomide-PEG<SUB>1</SUB>-CO<SUB>2</SUB>H (CAS 2139348-60-8), molecular formula C18H19N3O7 and molecular weight 389.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Pomalidomide-PEG<SUB>1</SUB>-CO<SUB>2</SUB>H (C18H19N3O7) 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).
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 | C18H19N3O7 |
| Molecular Weight | 389.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Pomalidomide-5'-PEG1-C2-acid (CAS 2412056-43-8)
- Levofloxacin impurity 68 (CAS CATO-C4X-137168)
- p-Nitrophenyl 4,6-Benzylidene-a-D-glucopyranoside (CAS 85906-27-0)
- Nitrendipine impurity 19 (CAS CATO-C4X-183419)
- 6-AMINO-2H-1,4-BENZOXAZIN-3(4H)-ONE 6-amino-2H-benzo[b][1,4]oxazin-3(4H)-one 89976-75-0 (CAS 89976-75-0)
- N-Ethyl-1H-benzo[d]imidazol-1-amine (CAS 176101-98-7)
- 3,3'-Dimethoxy-2,2'-bithiophene (CAS 118583-86-1)
- 2-Chloro-3-methylbenzhydrazide (CAS 1023883-70-6)
- 1-Benzyl-5-(hydroxymethyl)-6-(4-methoxyphenyl)piperidin-2-one (CAS 937604-02-9)
- 2-Methylquinolin-3-ol (CAS 613-19-4)
- N-(4-Methoxyphenyl)imidazo[1,2-a]pyrazin-3-amine (CAS 823806-68-4)
- Cupric L-(+)-tartrate trihydrate (CAS 5893-71-0)
- 3-(2-Hydroxyethoxy)-4-nitrobenzoic acid (CAS 1249597-20-3)
- Biotinyl-Neuropeptide W-23 (human) (CAS 1815618-09-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com