5-Chloro-2,3-dimethylpyrazine CAS 59489-32-6
| CAS No. | 59489-32-6 |
| Molecular Formula | C6H7ClN2 |
| Molecular Weight | 142.59 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.
5-Chloro-2,3-dimethylpyrazine (CAS 59489-32-6), molecular formula C6H7ClN2 and molecular weight 142.59 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H7ClN2, 5-Chloro-2,3-dimethylpyrazine contains a nitrile group, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 142.59 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.
Physical & Chemical Properties
| Molecular Formula | C6H7ClN2 |
| Molecular Weight | 142.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
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- 2-Chloro-5-ethylpyrimidine (CAS 111196-81-7)
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Recommended Standards
- 5-Amino-2-chloro-3-picoline (CAS 38186-82-2)
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- 5-Chloro-2-methylaminopyridine (CAS 4214-80-6)
- 1-[4-(3-Pyrrolidinylmethoxy)phenyl]-1-ethanonehydrochloride (CAS 1220029-91-3)
- 6-Bromo-2-(p-tolyl)imidazo[1,2-a]pyridine (CAS 858516-70-8)
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- Acrylic acid compound with 2-acrylamido-2-methylpropane-1-sulfonic acid (1:1) (CAS 40623-75-4)
- 1-((4-Hydrazinylpyridin-3-yl)sulfonyl)piperazine (CAS 1352528-49-4)
- 1-Ethyl-4-(piperidin-4-ylmethyl)piperidine (CAS 879883-60-0)
- 2-(2-Bromoethyl)-1-methylpyrrolidine (CAS 87642-30-6)
- 1533AE 2,5-Dimethyl-1-pyridin-3-yl-1H-pyrrole-3-carbaldehyde 35711-47-8 C12H12N2O (CAS 35711-47-8)
- 203626-29-3 6,8-Dibromo-4-chloro-2-methylquinoline DTXSID10588869 (CAS 203626-29-3)
- Glucagon (1-29) (CAS 16941-32-5)
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