Apremilast Impurity 56 CAS 1284768-38-2
| CAS No. | 1284768-38-2 |
| Molecular Formula | C13H21NO4S |
| Molecular Weight | 287.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Apremilast Impurity 56 (C13H21NO4S) contains a nitrogen-containing heterocyclic scaffold, 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).
Apremilast Impurity 56 (CAS 1284768-38-2) is a certified pharmaceutical impurity reference standard with the molecular formula C13H21NO4S and a molecular weight of 287.38 g/mol.
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 manufactures Apremilast Impurity 56 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H21NO4S |
| Molecular Weight | 287.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Apremilast Standards
- Apremilast Impurity 40 (CAS 2055542-18-0)
- Apremilast Impurity 76 (CAS CATO-C4X-100976)
- Apremilast Impurity 123 (CAS CATO-C4X-1009123)
- Apremilast impurity 14 (CAS 253168-94-4)
- Apremilast Impurity 25 (CAS 608142-27-4)
- Apremilast Impurity 55 (CAS 885268-06-4)
- Apremilast Impurity 73 (CAS CATO-C4X-100973)
- Apremilast Impurity 74 (CAS CATO-C4X-100974)
Recommended Standards
- Thieno[2,3-c]pyridine-3-carboxamide, 2-amino-4,5,6,7-tetrahydro-6-(phenylmethyl)- (CAS 34959-32-5)
- Biotin Impurity 37 (CAS CATO-C4X-156337)
- rac-(3R,4R)-1-benzyl-4-(thiophen-2-yl)pyrrolidine-3-carboxylic acid (CAS 2031242-81-4)
- Tetrabenazine Impurity 67 (CAS CATO-C4X-274867)
- Foritinib Impurity 1 (CAS CATO-C4X-33101)
- Lacosamide Impurity 43 (CAS 69805-82-9)
- Pyridoxine Impurity 27 (CAS 116169-14-3)
- Tetraphenyl Orthosilicate (CAS 1174-72-7)
- 2-((4-Chlorophenyl)amino)propanehydrazide (CAS 1396979-05-7)
- Ethyl 6-chloro-2-(difluoromethyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 2451256-51-0)
- Ethyl 2-(6-oxopiperidin-3-yl)acetate (CAS 2106637-76-5)
- 3-(4-Chlorophenyl)-4-oxo-N-phenyl-3,4-dihydrophthalazine-1-carboxamide (CAS 86671-80-9)
- Methyl 4-chlorothiazole-2-carboxylate (CAS 1465782-87-9)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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