Tofacitinib Impurity 41 CAS CATO-C4X-107941
| CAS No. | CATO-C4X-107941 |
| Molecular Formula | C13H19N5 |
| Molecular Weight | 245.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 245.32 g/mol gives Tofacitinib Impurity 41 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Tofacitinib Impurity 41 (CAS CATO-C4X-107941, C13H19N5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C13H19N5, Tofacitinib Impurity 41 contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 245.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Tofacitinib Impurity 41 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 | C13H19N5 |
| Molecular Weight | 245.32 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Tofacitinib Standards
- Tofacitinib Impurity N2 (CAS 1206825-36-6)
- Tofacitinib Impurity 10 (CAS 2097982-05-1)
- Tofacitinib Impurity 227 (CAS CATO-C4X-1079227)
- Tofacitinib Impurity 42 (CAS CATO-C4X-107942)
- Tofacitinib Impurity 6 (CAS 477600-74-1)
- Tofacitinib Impurity 72 (CAS 1260614-73-0)
- Tofacitinib Impurity 161 (CAS 1638499-36-1)
- Tofacitinib Impurity N1 (CAS 1782226-06-5)
Recommended Standards
- Milnacipran Impurity 47 (CAS CATO-C4X-103347)
- Milnacipran Impurity 42 (Mixture of Enantiomers) (CAS 165259-95-0)
- Agomelatine Impurity 19 (CAS 1352139-51-5)
- (4aR,7aS)-6-benzyl-1-nitrosooctahydro-1H-pyrrolo[3,4-b]pyridine (CAS CATO-C3D-26153)
- Suzetrigine Impurity 9 (CAS CATO-C4X-33699)
- Eltrombopag Impurity 117 (CAS CATO-C4X-1198117)
- Topiroxostat impurity 77 (CAS 103275-78-1)
- Burimamide oxalate (CAS 34970-69-9)
- 4-Chloro-n-[(4-fluorophenyl)methyl]-n-{[4-(hydrazinecarbonyl)phenyl]methyl}benzene-1-sulfonamide (CAS 1000930-52-8)
- Eperisone Impurity 49 TFA (CAS CATO-C4X-227949)
- Methyl (2,6-dimethylphenyl)glycinate (CAS 55883-02-8)
- 2-(N,N-Dimethyliminium)-4-ethyl-5-mercapto-1,3-dithiol, inner salt (CAS 677031-20-8)
- Sugammadex sodium Impurity Org226100-1 (CAS CATO-C4X-190679)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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