Zalcitabine CAS 7481-89-2
| CAS No. | 7481-89-2 |
| Molecular Formula | C9H13N3O3 |
| Molecular Weight | 211.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Zalcitabine 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.
Zalcitabine (CAS 7481-89-2), molecular formula C9H13N3O3 and molecular weight 211.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H13N3O3, Zalcitabine 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 211.22 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H13N3O3 |
| Molecular Weight | 211.22 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.) | 1959 |
| Nitrogen Atoms | 3 |
Related Zalcitabine Standards
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- tert-Butyl (S)-(1-(3-bromo-5-fluorophenyl)-2-((N-methyl-2-nitrophenyl)sulfonamido)ethyl)carbamate (CAS 1715032-60-2)
- Methyl 5-(4-bromophenyl)-2-methyl-1-(3-(trifluoromethyl)phenyl)-1H-pyrrole-3-carboxylate (CAS 881042-03-1)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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