4-(2,2-Dimethoxyethyl)-6-methoxypyrido[2,3-b]pyrazin-3(4H)-one CAS 1003945-84-3
| CAS No. | 1003945-84-3 |
| Molecular Formula | C12H15N3O4 |
| Molecular Weight | 265.27 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.
4-(2,2-Dimethoxyethyl)-6-methoxypyrido[2,3-b]pyrazin-3(4H)-one (CAS 1003945-84-3), molecular formula C12H15N3O4 and molecular weight 265.27 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(2,2-Dimethoxyethyl)-6-methoxypyrido[2,3-b]pyrazin-3(4H)-one (C12H15N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 265.27 g/mol, it falls into the medium-molecular-weight range. 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 | C12H15N3O4 |
| Molecular Weight | 265.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- (1S,5R)-2-azabicyclo[3.1.0]Hexane-1-carboxylic acid hydrochloride (CAS 1212477-19-4)
- N-(3,4-dimethoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105207-58-6)
- 2-(benzenesulfonyl)ethane-1-sulfonyl chloride (CAS 64440-81-9)
- NH2-PEG2-C6-Cl (CAS 744203-60-9)
- Tricyclodecenylacetate (CAS 2500-83-6)
- (5-Bromo-3-(trifluoromethyl)pyridin-2-yl)methanol (CAS 1206968-90-2)
- 3-methylpyridine-4-sulfonyl chloride (CAS 1060801-61-7)
- (2E)-N'-(4-Fluorophenyl)-3-(quinolin-3-yl)prop-2-enehydrazide (CAS 478046-44-5)
- 1-(4-(Bromomethyl)benzo[d]oxazol-2-yl)ethanone (CAS 1806320-57-9)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
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