3-Chloro-6-methylpyridazine CAS 1121-79-5
| CAS No. | 1121-79-5 |
| Molecular Formula | C5H11ClN2 |
| Molecular Weight | 134.61 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.
3-Chloro-6-methylpyridazine (CAS 1121-79-5), molecular formula C5H11ClN2 and molecular weight 134.61 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H11ClN2, 3-Chloro-6-methylpyridazine contains chlorine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 134.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C5H11ClN2 |
| Molecular Weight | 134.61 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 3-chloro-1-ethyl-pyrazole (CAS 1254309-82-4)
- 5-chloro-4-methylpyrimidine (CAS 54198-82-2)
- 2-Chloro-6-methyl-1,4-diazine 2-chloro-6-methyl-pyrazine 2-chloro-6-methylpyrazine 38557-71-0 (CAS 38557-71-0)
- 4-Chloro-2-methyltetrahydro-2H-pyran (CAS 116131-46-5)
- 5-Chloro-3-methyl-2-pentanone (CAS 1187-81-1)
- 4-chloro-3,3-dimethylbutan-2-one (CAS 13104-53-5)
- 2-Chloro-3,3-dimethylbutanal (CAS 13422-65-6)
- (S)-1-Chloro-5-hexen-2-ol (CAS 1374009-33-2)
Recommended Standards
- 6-Chloro-2-hexanone (CAS 10226-30-9)
- 4-(chloromethyl)-1-methyl-imidazole (CAS 112258-59-0)
- 4-Chloro-4-methyl-2-Pentanone (CAS 14575-13-4)
- 6-Chlorohexanal (CAS 52387-36-7)
- 6,6'-Thiobis(pyridin-3-amine) (CAS 32605-02-0)
- 2-(4-Fluorophenyl)-1-oxo-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid (CAS 1005150-91-3)
- 2,2,2-Trifluoroethyl n-(1-ethyl-1h-pyrazol-4-yl)carbamate (CAS 1156304-09-4)
- 3-(3,5-Difluorophenyl)-3-fluoropyrrolidine hydrochloride (CAS 1803583-15-4)
- 4-Methoxyquinolin-5-amine (CAS 2386327-94-0)
- N-Cbz-3-piperidineacetic Acid (CAS 86827-10-3)
- Rimegepant Impurity 15 (CAS 1289024-42-5)
- N-(4-Fluoro-2-nitro-phenyl)maleimide (CAS 886762-36-3)
- N-((1,3-Diphenyl-1H-pyrazol-5-yl)methylene)aniline (CAS 89185-68-2)
- Myelin Basic Protein (85-99) Peptide Antagonist (CAS 444305-16-2)
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