Cytarabine Impurity 25 CAS CATO-C4X-200525
| CAS No. | CATO-C4X-200525 |
| Molecular Formula | C8H14N2O5 |
| Molecular Weight | 218.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cytarabine Impurity 25 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Cytarabine Impurity 25 (CAS CATO-C4X-200525), a pharmacopoeial impurity reference standard (molecular formula C8H14N2O5, MW 218.21 g/mol) used for the identification and quantification of trace impurities in APIs.
Cytarabine Impurity 25 (C8H14N2O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Cytarabine Impurity 25 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 | C8H14N2O5 |
| Molecular Weight | 218.21 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
Related Cytarabine Standards
- Cytarabine Impurity 24 (CAS CATO-C4X-200524)
- Cytarabine Impurity 26 (CAS CATO-C4X-200526)
- Cytarabine Impurity 7 (CAS CATO-C4X-20057)
- Cytarabine EP Impurity F (CAS 32830-01-6)
- Cytarabine EP Impurity H (CAS 31698-14-3)
- Cytarabine (CAS 147-94-4)
- Cytarabine EP Impurity E (CAS 65-46-3)
- Cytarabine Impurity 20 (CAS CATO-C4X-200520)
Recommended Standards
- Alanyl Glutamine Impurity 7 (CAS CATO-C4X-19747)
- Hydantoin Impurity 29 (CAS 4371-32-8)
- Alanyl Glutamine Impurity 4 (CAS CATO-C4X-19744)
- Phloroglucinol Impurity 57 (CAS 738614-23-8)
- Baloxavir Impurity 62 (CAS CATO-C4X-210862)
- Epinastine Impurity 48 (CAS CATO-C4X-184048)
- Olanzapine Impurity 36 (CAS CATO-C4X-117836)
- 2-Chloro-N-(2-((2,3-dimethylphenyl)amino)-2-oxoethyl)acetamide (CAS 743456-90-8)
- 3-Oxo-2,3,5,6,7,8-hexahydro-[1,2,4]triazolo[4,3-a]pyrazine-6-carboxylic acid (CAS 144888-68-6)
- 2-Amino-5-fluoro-4-methylphenol (CAS 83341-37-1)
- 1-(3-Acetylphenyl)-3-(1-(4-fluorobenzyl)-1H-pyrazol-4-yl)urea (CAS 894502-73-9)
- Methyl 2-phenyl-1,3-thiazole-5-carboxylate (CAS 172678-68-1)
- 2-(Difluoromethyl)-7-methoxybenzothiazole (CAS 1261629-81-5)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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