Carfilzomib Impurity 91 CAS CATO-C4X-102291
| CAS No. | CATO-C4X-102291 |
| Molecular Formula | C40H57N5O7 |
| Molecular Weight | 719.91 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 719.91 g/mol gives Carfilzomib Impurity 91 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Carfilzomib Impurity 91 (CAS CATO-C4X-102291) is a certified pharmaceutical impurity reference standard with the molecular formula C40H57N5O7 and a molecular weight of 719.91 g/mol.
Based on its molecular formula C40H57N5O7, Carfilzomib Impurity 91 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 719.91 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Carfilzomib Impurity 91 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 | C40H57N5O7 |
| Molecular Weight | 719.91 g/mol |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Carfilzomib Standards
- Carfilzomib (CAS 868540-17-4)
- Carfilzomib Impurity 10 (CAS CATO-C4X-102210)
- Carfilzomib Impurity 22 (CAS 2049025-45-6)
- Carfilzomib Impurity 23 (CAS CATO-C4X-102223)
- Carfilzomib Impurity 24 (CAS CATO-C4X-102224)
- Carfilzomib Impurity 25 (CAS CATO-C4X-102225)
- Carfilzomib Impurity 26 (CAS 2049025-76-3)
- Carfilzomib Impurity 27 (CAS CATO-C4X-102227)
Recommended Standards
- Carfilzomib Impurity 90 (CAS CATO-C4X-102290)
- Chromoionophore VII (CAS 141754-62-3)
- Carfilzomib Impurity 9 (CAS CATO-C4X-10229)
- Tris[4'-(2-thienyl)-4-biphenylyl]amine (CAS 1092356-36-9)
- Sulindac Impurity 89 (CAS 37794-15-3)
- Azacitidine Impurity 62 (CAS 201681-19-8)
- Rosuvastatin Impurity 147 (CAS CATO-C4X-1169147)
- (2S)-4-(Acetyloxy)-1,3-dioxolane-2-methanol Benzoate (CAS 214273-21-9)
- (1S,4r)-4-ethylcyclohexan-1-amine hydrochloride (CAS 33483-67-9)
- Lacto-N-difucohexaose II (CAS 62258-12-2)
- (3-Ethylisoxazol-5-yl)methanamine (CAS 145689-96-9)
- 2-(Propan-2-yloxy)-2,3-dihydro-1H-isoindole-1,3-dione (CAS 51951-27-0)
- Fudosteine Impurity 68 (CAS CATO-C4X-144768)
- Neuroendocrine Regulatory Peptide-4 (human, mouse, rat) (H-7266.1000) (CAS 922704-18-5)
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