2,3-Dimethylpyrido[3,4-b]pyrazine CAS 34154-05-7
| CAS No. | 34154-05-7 |
| Molecular Formula | C9H9N3 |
| Molecular Weight | 159.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3-Dimethylpyrido[3,4-b]pyrazine (CAS 34154-05-7), molecular formula C9H9N3 and molecular weight 159.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9N3, 2,3-Dimethylpyrido[3,4-b]pyrazine contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 159.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H9N3 |
| Molecular Weight | 159.19 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 3 |
Related Dimethylpyrido Standards
- 3,5-Dimethylpyrido[3,4-e][1,2,4]triazine (CAS 121845-74-7)
- 2,3-Dimethylpyrido[3,4-b]pyrazin-8-amine (CAS 109868-80-6)
- N,8-dimethylpyrido[2,3-d]pyridazin-5-amine (CAS 1330753-39-3)
- N,7-Dimethylpyrido[2,3-d]pyrimidin-2-amine, 97% (CAS 1454682-78-0)
- 3,6-Dimethylpyrido[2,3-b]pyrazin-2(1H)-one (CAS 159104-70-8)
- 5,7-Dimethylpyrido[2,3-d]pyrimidin-4(3H)-one (CAS 1913-72-0)
- 1,3-Dimethylpyrido[3,4-b]pyrazin-2(1H)-one (CAS 93192-52-0)
- 2,3-Dimethylpyrido[2,3-b]pyrazin-6(4H)-one (CAS 52996-62-0)
Recommended Standards
- 2,3-dihydro-1H-imidazo[1,2-a]benzimidazole (CAS 24134-26-7)
- 2-Allyl-2H-benzo[d][1,2,3]triazole (CAS 82813-00-1)
- 2,2'-Azanediylbis(N-methylacetamide) (CAS 725686-07-7)
- 2-Amino-3-methylquinoxaline (CAS 34972-22-0)
- 3-Amino-6-(4-methyl-1-piperazinyl)pyridine (CAS 55403-35-5)
- 4-Chloro-n-(1-cyanocyclopentyl)benzamide (CAS 912762-28-8)
- 1-O-Hexadecyl-2-acetyl-sn-glycero-3-phospho-(N,N,N-trimethyl)-hexanolamine (CAS 99103-16-9)
- (4-Amino-5-(difluoromethyl)-2-fluoropyridin-3-yl)methanol (CAS 1804954-51-5)
- (1-(3,4-Difluorophenyl)cyclobutyl)methanamine (CAS 1519567-21-5)
- Lornoxicam Impurity 39 (CAS 98827-44-2)
- 3-Methyl-2-(trifluoromethyl)-1H-indole (CAS 913955-35-8)
- 3,6-Dibromo-9-(naphthalen-2-yl)-9H-carbazole (CAS 1221237-83-7)
- 4-Bromopyrazolo[1,5-a]pyridine-3-carbaldehyde (CAS 1356144-47-2)
- Neuropeptide GE (CAS 134748-04-2)
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