Kyprolis Impurity J CAS 70691-56-4
| CAS No. | 70691-56-4 |
| Molecular Formula | C22H28N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| 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 Kyprolis Impurity J.
CATO supplies Kyprolis Impurity J (CAS 70691-56-4), a certified reference material (molecular formula C22H28N2O3HCl, MW 404.93 g/mol) for analytical method development and quality control.
Based on its molecular formula C22H28N2O3HCl, Kyprolis Impurity J contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 404.93 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Kyprolis Impurity J under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H28N2O3 HCl |
| Molecular Weight | 404.93 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Kyprolis Standards
Recommended Standards
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- N-methyl-4-((3-(trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonamide (CAS 1227955-09-0)
- 5-(Aminomethyl)pyridin-3-amine (CAS 754129-80-1)
- 2-Bromo-3-(methoxymethyl)-6-methylpyridine (CAS 1097730-28-3)
- (E)-2-(1-(dimethylamino)-3-((4-hydroxyphenyl)amino)allylidene)malononitrile (CAS 338773-87-8)
- Ethyl 5-Methylpyridine-2-acetate (CAS 5552-82-9)
- 2-((2-Chlorophenyl)Amino)Nicotinonitrile (CAS 121005-01-4)
- Semaglutide Impurity 5 (CAS 23406-82-8)
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