Carfilzomib Impurity 5 CAS 1672698-88-2
| CAS No. | 1672698-88-2 |
| Molecular Formula | C40H57N5O7 |
| Molecular Weight | 719.91 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Carfilzomib Impurity 5 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.
CATO supplies Carfilzomib Impurity 5 (CAS 1672698-88-2), a pharmacopoeial impurity reference standard (molecular formula C40H57N5O7, MW 719.91 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C40H57N5O7, Carfilzomib Impurity 5 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.
Physical & Chemical Properties
| Molecular Formula | C40H57N5O7 |
| Molecular Weight | 719.91 g/mol |
| Purity | 97%+ |
| 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 |
| CAS Registry Year (est.) | 1993 |
| 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 46 (CAS 2049025-49-0)
- Carfilzomib Impurity 61 (CAS 2049025-67-2)
- Carfilzomib Impurity 88 (CAS CATO-C4X-102288)
- Carfilzomib Impurity 9 (CAS CATO-C4X-10229)
- Nintedanib Impurity 176 (CAS CATO-C4X-1814176)
- Prucalopride Impurity 3 (CAS 1608459-56-8)
- Nitroso Perindopril EP impurity N (CAS CATO-C4X-125251)
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- 4-(Isobutylthio)benzenethiol (CAS 56056-59-8)
- 4-(Tert-butyl)pyridin-2-amine (CAS 33252-26-5)
- Netupitant Impurity 23 (CAS CATO-C4X-122323)
- tert-Butyl (3-hydroxy-1-(pyridin-2-yl)propyl)carbamate (CAS 886504-20-7)
- Obeticholic Acid-d5 Sodium Salt (CAS CATO-C4X-115326)
- Calcineurin Autoinhibitory Peptide (CAS 148067-21-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com