Cabazitaxel Impurity 21 CAS 132127-34-5
| CAS No. | 132127-34-5 |
| Molecular Formula | C9H9NO2 |
| Molecular Weight | 163.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H9NO2, Cabazitaxel Impurity 21 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 163.17 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).
CATO supplies Cabazitaxel Impurity 21 (CAS 132127-34-5), a pharmacopoeial impurity reference standard (molecular formula C9H9NO2, MW 163.17 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Cabazitaxel 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.
Physical & Chemical Properties
| Molecular Formula | C9H9NO2 |
| Molecular Weight | 163.17 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
Related Cabazitaxel Standards
- Cabazitaxel Impurity 60 (CAS 777885-04-8)
- Cabazitaxel Impurity 22 (CAS 146924-92-7)
- Cabazitaxel Impurity 26 (CAS 144790-01-2)
- Cabazitaxel Impurity 24 ( (2R,3S)-3-Amino-2-hydroxy-3-phenylpropionic Acid Ethyl Ester) (CAS 143615-00-3)
- Cabazitaxel Impurity 17 (CAS 160535-69-3)
- Cabazitaxel Impurity 37 (CAS 131023-37-5)
- Cabazitaxel Impurity 11 (CAS CATO-C4X-111511)
- Cabazitaxel Impurity 7 (CAS 1426815-65-7)
Recommended Standards
- Ezetimibe Impurity 52 (CAS 90319-52-1)
- Ezetimibe Impurity 34 (CAS 99395-88-7)
- Aripiprazole EP Impurity A (CAS 22246-18-0)
- Milrinone Impurity 21 (CAS 2497745-31-8)
- Isavuconazole Impurity 157 (CAS CATO-C4X-1236157)
- Lifitegrast Impurity 14 (CAS CATO-C4X-240914)
- CAS CATO-C3D-262838 (CAS CATO-C3D-262838)
- (3-Isopropyl-5-methylphenyl)(thiophen-2-yl)methanol (CAS 1443328-89-9)
- 3-Chloro-5-(1-pyrrolidinyl)pyridazine (CAS 1033693-13-8)
- 4-Bromo-N-(cyclopropylmethyl)-3-methylaniline (CAS 1154342-49-0)
- Tiaramide (CAS 32527-55-2)
- (4-Ethoxy-2,3-dimethylphenyl)methanol (CAS 1504246-77-8)
- 2-Amino-3-({1-[(prop-2-yn-1-yl)carbamoyl]ethyl}sulfanyl)propanoic acid (CAS 1396962-18-7)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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