Istradefylline Impurity 21 CAS 41740-15-2
| CAS No. | 41740-15-2 |
| Molecular Formula | C8H13N3O2 |
| Molecular Weight | 183.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Istradefylline Impurity 21 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.
Istradefylline Impurity 21 (CAS 41740-15-2) is a certified pharmaceutical impurity reference standard with the molecular formula C8H13N3O2 and a molecular weight of 183.21 g/mol.
Istradefylline Impurity 21 (C8H13N3O2) contains an amino-acid-derived structure, an amide 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 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.
Physical & Chemical Properties
| Molecular Formula | C8H13N3O2 |
| Molecular Weight | 183.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 3 |
Related Istradefylline Standards
- Istradefylline Impurity 16 (CAS CATO-C4X-106116)
- Istradefylline Impurity 11 (CAS 52998-22-8)
- Istradefylline Impurity 8 (CAS 14773-40-1)
- Istradefylline impurity 38 (CAS CATO-C4X-106138)
- Istradefylline Impurity 14 (CAS 21237-00-3)
- Istradefylline Impurity 29 (CAS 5759-63-7)
- Istradefylline Impurity 15 (CAS 89073-60-9)
- Istradefylline impurity (CAS 49540-32-1)
Recommended Standards
- (S)-1-(3-methyl-4-nitrosopiperazin-1-yl)prop-2-en-1-one (CAS CATO-C3D-262114)
- Agomelatine Impurity 33 (CAS 1079774-32-5)
- Ilaprazole Impurity N2 (CAS 1018229-57-6)
- Sildenafil Impurity 58 (CAS 383427-88-1)
- Tofacitinib Impurity 5 (CAS 1616760-97-4)
- Afatinib Impurity 4 (CAS CATO-C4X-10064)
- Iobitridol Impurity 9 (CAS 342892-07-3)
- Tert-butyl (4-amino-2-methylbutan-2-yl)carbamate (CAS 880100-43-6)
- hexahydro-2H-cyclopenta[b][1,4]dithiin-5-one (CAS 1432679-71-4)
- 1-[(4-Chlorophenyl)methyl]-2-oxo-5-phenyl-1,2-dihydropyridine-3-carbonitrile (CAS 866038-58-6)
- Tetrabenazine Impurity 4 (CAS 63708-05-4)
- 4,5-Dibromo-2-iodotoluene (CAS 1160574-02-6)
- 4-[2-(3-chlorophenoxy)ethoxy]-3-ethoxybenzaldehyde (CAS 1286429-98-8)
- Tetrapeptide-3 (CAS 827306-97-8)
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