Apremilast impurity 17 CAS CATO-C4X-100917
| CAS No. | CATO-C4X-100917 |
| Molecular Formula | C20H20N2O7S |
| Molecular Weight | 432.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Apremilast impurity 17 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.
Apremilast impurity 17 (CAS CATO-C4X-100917) is a certified pharmaceutical impurity reference standard with the molecular formula C20H20N2O7S and a molecular weight of 432.45 g/mol.
Apremilast impurity 17 (C20H20N2O7S) contains a flavonoid core, an amide group, a sulfone 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. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C20H20N2O7S |
| Molecular Weight | 432.45 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Apremilast Standards
- Apremilast impurity 63 (CAS 1384967-20-7)
- Apremilast Impurity 26 (CAS CATO-C4X-100926)
- Apremilast Impurity 100 (CAS CATO-C4X-1009100)
- Apremilast Impurity 117 (CAS CATO-C4X-1009117)
- Apremilast Impurity 37 (CAS 1407140-51-5)
- Apremilast impurity 13 (CAS CATO-C4X-100913)
- Apremilast impurity 89 (CAS CATO-C4X-100989)
- Apremilast impurity 90 (CAS CATO-C4X-100990)
Recommended Standards
- 2-Bromo-5-(((tert-butyldiphenylsilyl)oxy)methyl)thiazole (CAS 2143028-11-7)
- 2-((9,10-Dioxo-9,10-dihydroanthracen-2-yl)amino)-2-oxoethyl 2-(methylthio)nicotinate (CAS 479522-97-9)
- Rosuvastatin Impurity 260 (CAS CATO-C4X-1169260)
- 1-(Furan-2-ylmethyl)-2-imino-3-(phenylsulfonyl)-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 606951-74-0)
- Fulvestrant impurity 55 (CAS CATO-C4X-191755)
- Roxatidine Impurity 54 (CAS CATO-C4X-121354)
- Florfenicol Impurity 13 (CAS CATO-C4X-207513)
- 2-Methyl-1,3-Dioxane (CAS 626-68-6)
- Tetramethylhydroquinone (CAS 527-18-4)
- Teicoplanin A2 (Mixture of 2-1, 2-2, 2-3, 2-4 and 2-5) (CAS 61036-64-4)
- 3-{[(4-methyl-1,3-thiazol-2-yl)thio]methyl}-1-benzofuran-2-carboxylic acid (CAS 850021-31-7)
- 2-Cyclopropoxy-N-methyl-4-(methylthio)benzamide (CAS 1243480-55-8)
- 3,4-Dichloro-5-(difluoromethoxy)phenylacetic acid 1804517-04-1 (CAS 1804517-04-1)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
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