1-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-3-(2-hydroxyethyl)-3-nitrosourea CAS 89854-43-3
| CAS No. | 89854-43-3 |
| Molecular Formula | C7H9N5O5 |
| Molecular Weight | 243.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-3-(2-hydroxyethyl)-3-nitrosourea (CAS 89854-43-3), molecular formula C7H9N5O5 and molecular weight 243.18 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H9N5O5, 1-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-3-(2-hydroxyethyl)-3-nitrosourea 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 243.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H9N5O5 |
| Molecular Weight | 243.18 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 1982 |
| Nitrogen Atoms | 5 |
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