Apremilast Impurity 76 CAS CATO-C4X-100976
| CAS No. | CATO-C4X-100976 |
| Molecular Formula | C13H19NO5S |
| Molecular Weight | 301.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Apremilast Impurity 76 (C13H19NO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 301.36 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Apremilast Impurity 76 (CAS CATO-C4X-100976), a pharmacopoeial impurity reference standard (molecular formula C13H19NO5S, MW 301.36 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Apremilast Impurity 76 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 | C13H19NO5S |
| Molecular Weight | 301.36 g/mol |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Apremilast Standards
- Apremilast Impurity 123 (CAS CATO-C4X-1009123)
- Apremilast Impurity 77 (CAS CATO-C4X-100977)
- Apremilast Impurity 122 (CAS CATO-C4X-1009122)
- Apremilast Impurity 35 (CAS CATO-C4X-100935)
- Apremilast Impurity 56 (CAS 1284768-38-2)
- Apremilast Impurity 51 (CAS 2097600-16-1)
- Apremilast impurity 64 (CAS CATO-C4X-100964)
- Apremilast Impurity 70 (CAS CATO-C4X-100970)
Recommended Standards
- Argatroban Impurity 112 (CAS CATO-C4X-1007112)
- Rabeprazole EP Impurity E (CAS 102804-77-3)
- Argatroban Impurity 101 (CAS CATO-C4X-1007101)
- Tirofiban Impurity 118 (CAS 1346918-32-8)
- Erythromycin EP Impurity I（Erythralosamine） (CAS 546-57-6)
- Lusutrombopag Impurity 15 (CAS CATO-C4X-208415)
- Levofolinate Impurity 16 (CAS CATO-C4X-133516)
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- 2-([1,1'-Biphenyl]-4-yloxy)-N-(4-bromophenyl)acetamide (CAS 302550-95-4)
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- 2-(2-Chloro-6-fluoro-4-(trifluoromethyl)phenyl)-5-phenyl-1H-1,2,4-triazol-3(2H)-one (CAS 1000571-87-8)
- Ethyl 2-(isopropylimino)-4-(trifluoromethyl)-2,3-dihydrothiazole-5-carboxylate (CAS 135026-49-2)
- Methyl 4-amino-5-formylpicolinate (CAS 1260663-99-7)
- Macrophage Inhibitory Peptide (CAS 41961-56-2)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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