Cytarabine EP Impurity A CAS 3083-77-0
| CAS No. | 3083-77-0 |
| Molecular Formula | C9H12N2O6 |
| Molecular Weight | 244.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 244.20 g/mol gives Cytarabine EP Impurity A distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Cytarabine EP Impurity A (CAS 3083-77-0), a pharmacopoeial impurity reference standard (molecular formula C9H12N2O6, MW 244.20 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C9H12N2O6, Cytarabine EP Impurity A 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 244.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Cytarabine EP Impurity A 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 | C9H12N2O6 |
| Molecular Weight | 244.20 g/mol |
| Appearance | Off-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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Cytarabine Standards
- Cytarabine (CAS 147-94-4)
- Cytarabine EP Impurity E (CAS 65-46-3)
- Cytarabine Impurity 20 (CAS CATO-C4X-200520)
- Cytarabine Impurity 21 (CAS CATO-C4X-200521)
- Cytarabine Impurity 22 (CAS CATO-C4X-200522)
- Cytarabine Impurity 9 (CAS 7428-39-9)
- Cytarabine-5,6-d2 (CAS 40632-26-6)
- Cytarabine Impurity 27 (CAS CATO-C4X-200527)
Recommended Standards
- Ribavirin EP Impurity G (CAS 39030-43-8)
- Urolithin C (CAS 165393-06-6)
- Ribavirin EP Impurity B (CAS 57198-02-4)
- Ribavirin (CAS 36791-04-5)
- Bortezomib Impurity 61 (CAS CATO-C4X-107261)
- Biapenem Impurity 24 (CAS CATO-C4X-227324)
- Midecamycin Impurity 19 (CAS CATO-C4X-312219)
- Imidazo[1,5-a]pyridine-6-carboxylic Acid (CAS 256935-76-9)
- (1H-Pyrazolo[4,3-c]pyridin-6-yl)methanol (CAS 1206974-35-7)
- 6-Fluoro-1,8-dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 1315371-35-7)
- 4-bromo-2-(propan-2-yl)benzene-1-sulfonyl chloride (CAS 1548128-18-2)
- (6-Fluoro-1H-imidazo[4,5-b]pyridin-2-yl)methanol (CAS 954217-96-0)
- 1-(4-Methoxyphenyl)but-3-en-1-amine (CAS 97974-64-6)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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