Apremilast Impurity 100 CAS CATO-C4X-1009100
| CAS No. | CATO-C4X-1009100 |
| Molecular Formula | C22H26O7S |
| Molecular Weight | 434.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Apremilast Impurity 100.
Apremilast Impurity 100 (CAS CATO-C4X-1009100) is a certified pharmaceutical impurity reference standard with the molecular formula C22H26O7S and a molecular weight of 434.50 g/mol.
Apremilast Impurity 100 (C22H26O7S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C22H26O7S |
| Molecular Weight | 434.50 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 1 |
Related Apremilast Standards
- Apremilast impurity 13 (CAS CATO-C4X-100913)
- Apremilast impurity 89 (CAS CATO-C4X-100989)
- Apremilast impurity 90 (CAS CATO-C4X-100990)
- Apremilast impurity 17 (CAS CATO-C4X-100917)
- Apremilast impurity 63 (CAS 1384967-20-7)
- Apremilast Impurity 26 (CAS CATO-C4X-100926)
- Apremilast Impurity 117 (CAS CATO-C4X-1009117)
- Apremilast Impurity 37 (CAS 1407140-51-5)
Recommended Standards
- 1H-1,2,3-Triazole-1-propanol, 4,4',4''-[nitrilotris(methylene)]tris- 760952-88-3 (CAS 760952-88-3)
- Dexamethasone Acetate EP Impurity C (CAS CATO-C4X-116540)
- Methyl 3-((4-(2-fluorophenyl)piperazin-1-yl)sulfonyl)benzo[b]thiophene-2-carboxylate (CAS 899725-38-3)
- Dexamethasone Acetate EP Impurity B (CAS CATO-C4X-116550)
- Piperazine Impurity 10 (CAS CATO-C4X-242710)
- Benzalkonium Chloride impurity 8 (CAS 39695-18-6)
- Oseltamivir EP Impurity B (CAS 2125702-80-7)
- 1-(3-Fluorophenyl)-2-(4-methoxyphenyl)ethanone (CAS 1178253-26-3)
- 4-(Aziridin-1-yl)-5-chlorocinnoline (CAS 68211-03-0)
- Mal-amido-PEG12-NHS ester (CAS 2101722-60-3)
- Teprenone Impurity 25 (CAS CATO-C4X-208125)
- N-{[2-(1H-Pyrrol-1-yl)-1,3-benzothiazol-6-yl]-carbonyl}glycine (CAS 951947-53-8)
- Ethyl 3-formyl-1H-indole-5-carboxylate (CAS 467458-46-4)
- Ginseng Tetrapeptide (CAS 178553-95-2)
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