Dexrazoxane Impurity 44 CAS 21416-67-1
| CAS No. | 21416-67-1 |
| Molecular Formula | C11H16N4O4 |
| Molecular Weight | 268.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Dexrazoxane Impurity 44 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Dexrazoxane Impurity 44 (CAS 21416-67-1), a pharmacopoeial impurity reference standard (molecular formula C11H16N4O4, MW 268.27 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Dexrazoxane Impurity 44 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 | C11H16N4O4 |
| Molecular Weight | 268.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 4 |
Related Dexrazoxane Standards
- Dexrazoxane (CAS 24584-09-6)
- Dexrazoxane Impurity 8 (CAS CATO-C4X-20208)
- Dexrazoxane Impurity 9 (CAS CATO-C4X-20209)
- Dexrazoxane Impurity 2 (CAS 120418-76-0)
- Dexrazoxane Impurity 27 (CAS 120418-77-1)
- Dexrazoxane Impurity 29 (CAS 1078122-47-0)
- Dexrazoxane Impurity 30 (CAS 144236-91-9)
- Dexrazoxane Impurity 23 (CAS CATO-C4X-202023)
Recommended Standards
- (R)-Razoxane (Levrazoxane) (CAS 24613-06-7)
- Olprinone Impurity 4 (CAS 106730-62-5)
- Olprinone Impurity 7 (CAS CATO-C4X-20437)
- Doxofylline Impurity 6 (CAS 1429636-72-5)
- Albendazole impurity 37 (CAS CATO-C4X-153537)
- Revefenacin impurity 105 (CAS CATO-C4X-2031105)
- Pregabalin Impurity 30 (CAS CATO-C4X-131230)
- 5-amino-1H-pyrazole-3-carboxylic acid (CAS 124004-31-5)
- Methyl (bis(benzyloxy)phosphoryl)carbamimidate (CAS 93023-32-6)
- 8-Thia-2-azaspiro[4.5]decane 8,8-dioxide (CAS 1250496-39-9)
- 4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidine hydrochloride (CAS 1402232-88-5)
- 4-amino-1,1,1-trifluorobut-3-yn-2-one (CAS 120417-45-0)
- 3-Chloro-2-(2,3-dimethylphenoxy)aniline (CAS 946772-57-2)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com