Apremilast impurity 128 CAS 2489621-73-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2489621-73-8 |
| Molecular Formula | C12H18O4S |
| Molecular Weight | 258.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Apremilast impurity 128 (CAS 2489621-73-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H18O4S. Molecular weight: 258.33 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H18O4S |
| Molecular Weight | 258.33 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Sulfur Atoms | 1 |
Related Apremilast Standards
- Apremilast Impurity 113 (CAS CATO-C4X-1009113)
- Apremilast Impurity 21 (CAS CATO-C4X-100921)
- Apremilast Impurity 57 (CAS 1255909-25-1)
- Apremilast Impurity 31 (CAS 1831833-38-5)
- Apremilast Impurity 106 (CAS CATO-C4X-1009106)
- Apremilast Impurity 41 (CAS 1450657-31-4)
- Apremilast Impurity 81 (CAS CATO-C4X-100981)
- Apremilast Impurity 22 (CAS CATO-C4X-100922)
Recommended Standards
- Calcitonin Impurity 18 (CAS CATO-C4X-221818)
- 3-Hydroxy-2,2-dimethylpropyl 4-methylbenzenesulfonate (CAS 21651-04-7)
- 1-(1-ethyl-3-methyl-1h-pyraZole-4-sulfonyl)-piperazine (CAS 1005697-97-1)
- Bisoprolol Impurity 70 (CAS 84425-10-5)
- Risedronate EP Impurity C (CAS 105462-25-7)
- 1-Phenethylpiperidine-4-carboxylic acid (CAS 807315-42-0)
- 4-Bromo-2-pyrrolidin-1-ylpyridine (CAS 1142194-47-5)
- 1-(2,2-difluoroethyl)-N-[4-methoxy-3-(methoxymethyl)benzyl]-1H-pyrazol-4-amine (CAS 1172372-04-1)
- 2-Fluoro-4-(phenylethynyl)benzoic acid (CAS 1462877-66-2)
- Semaglutide Impurity 6 (CAS 62-57-7)
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 13829788188 / jacky.chen@cato-chem.com