8-HYdroxy-imidazo[1,2-a]pyrazine-2-carboxylic acid ethyl ester hydrobromide CAS 1951439-66-9
| CAS No. | 1951439-66-9 |
| Molecular Formula | C9H9N3O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 288.10 g/mol gives 8-HYdroxy-imidazo[1,2-a]pyrazine-2-carboxylic acid ethyl ester hydrobromide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 8-HYdroxy-imidazo[1,2-a]pyrazine-2-carboxylic acid ethyl ester hydrobromide (CAS 1951439-66-9), a certified reference material (molecular formula C9H9N3O3HBr, MW 288.10 g/mol) for analytical method development and quality control.
Structurally, 8-HYdroxy-imidazo[1,2-a]pyrazine-2-carboxylic acid ethyl ester hydrobromide (C9H9N3O3HBr) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 288.10 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H9N3O3 HBr |
| Molecular Weight | 288.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
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