1-(3,6-Dimethoxy-5-methylpyrazin-2-yl)ethanone CAS 56343-43-2
| CAS No. | 56343-43-2 |
| Molecular Formula | C9H12N2O3 |
| Molecular Weight | 196.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1-(3,6-Dimethoxy-5-methylpyrazin-2-yl)ethanone (CAS 56343-43-2), a certified reference material (molecular formula C9H12N2O3, MW 196.20 g/mol) for analytical method development and quality control.
1-(3,6-Dimethoxy-5-methylpyrazin-2-yl)ethanone (C9H12N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C9H12N2O3 |
| Molecular Weight | 196.20 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 |
| 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.) | 1973 |
| Nitrogen Atoms | 2 |
Related Dimethoxy Standards
- 3,6-Dimethoxy-2-methylbenzoic acid (CAS 116324-66-4)
- 2,3-Dimethoxy-4-methylbenzoic acid (CAS 77869-39-7)
- 2,3-Dimethoxy-5,6-dimethylcyclohexa-2,5-diene-1,4-dione (CAS 483-54-5)
- 2,3-Dimethoxy-6-methylbenzoic acid (CAS 5653-57-6)
- 2,4-Dimethoxy-3-methylbenzoic acid (CAS 81574-49-4)
- 2,4-Dimethoxy-5-methylbenzoic acid (CAS 50625-55-3)
- 2,4-Dimethoxy-6-methyl benzoic acid, 97% (CAS 3686-57-5)
- 2,5-Dimethoxy-4-methylbenzoic acid (CAS 32176-94-6)
Recommended Standards
- 1-(2-methoxy-5-nitrophenyl)ethan-1-amine (CAS 897552-50-0)
- 1-(4-Amino-3-nitrophenyl)propan-2-ol (CAS 855444-70-1)
- 1-(2-hydroxy-4,5-dimethoxyphenyl)ethan-1-one (CAS 20628-06-2)
- 1-(4-Hydroxy-2,3-dimethoxyphenyl)ethanone (CAS 87344-56-7)
- 2-Bromo-4-tert-Butylbenzaldehyde (CAS 246139-77-5)
- Diheptyl [2,2'-biquinoline]-4,4'-dicarboxylate (CAS 1183-31-9)
- 1,2-Dichlorotridecane (CAS 701920-72-1)
- [1-(6-Methoxy-pyrimidin-4-yl)-piperidin-2-ylmethyl]-carbamic acid tert-butyl ester (CAS 1353989-74-8)
- Tert-butyl 8-benzyl-6,6-dimethyl-5-oxa-2,8-diazaspiro[3.5]Nonane-2-carboxylate (CAS 1803602-11-0)
- 3-(Bromomethyl)quinolin-2(1H)-one (CAS 35740-85-3)
- 2-{2-[3-(trifluoromethyl)phenoxy]ethoxy}-2,3-dihydro-1H-isoindole-1,3-dione (CAS 113211-14-6)
- 1-((2-Bromoethyl)sulfonyl)-4-methylbenzene (CAS 5755-76-0)
- 2-Methoxyquinolin-8-ol (CAS 74668-72-7)
- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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