methyl 6-chloropyridazine-3-carboxylate CAS 65202-50-8
| CAS No. | 65202-50-8 |
| Molecular Formula | C6H11ClN2O2 |
| Molecular Weight | 178.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
methyl 6-chloropyridazine-3-carboxylate (CAS 65202-50-8), molecular formula C6H11ClN2O2 and molecular weight 178.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, methyl 6-chloropyridazine-3-carboxylate (C6H11ClN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 178.62 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C6H11ClN2O2 |
| Molecular Weight | 178.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related methyl Standards
- methyl 6-chloropyridazine-4-carboxylate (CAS 1093860-48-0)
- methyl 3-chloropyridazine-4-carboxylate (CAS 1895477-24-3)
- 6-Chloropyridazine-3-carbonyl chloride (CAS 6531-04-0)
- Ethyl 3-Chloropyridazine-4-carboxylate (CAS 1445-54-1)
- Ethyl 6-Chloropyridazine-3-carboxylate (CAS 75680-92-1)
- Ethyl 6-Chloropyridazine-4-carboxylate (CAS 612834-90-9)
- 3-Butyl-6-chloropyridazine (CAS 124438-76-2)
- 3-Phenyl-6-chloropyridazine (CAS 20375-65-9)
Recommended Standards
- Methyl 5-Chloro-2-pyrazinecarboxylate (CAS 33332-25-1)
- N-(2-Chloroacetyl)butanohydrazide (CAS 38090-73-2)
- methyl 4-chloropyrimidine-2-carboxylate (CAS 811450-17-6)
- N-[2-(acetylamino)ethyl]-2-chloroacetamide (CAS 86240-79-1)
- 3-(3-Chlorophenyl)-2,2-dimethylpropan-1-ol (CAS 1267954-80-2)
- 1-(2-Fluorophenyl)-4-(4-(3-fluoropropoxy)benzyl)piperazine (CAS 477871-04-8)
- 1-(3-Chloro-2-fluorophenyl)cyclopropanamine (CAS 1227418-16-7)
- 2,5-Dimethyl-4-methoxy-3(2H)-furanone (CAS 4077-47-8)
- Methyl 4'-(benzyloxy)-[1,1'-biphenyl]-2-carboxylate (CAS 893736-49-7)
- Ethyl 2-cyclopropyl-6-formylpyrimidine-4-carboxylate (CAS 2812367-03-4)
- Disperse Blue 373 (Technical Grade) (CAS 51868-46-3)
- (5-Ethylthiophen-2-yl)methanethiol (CAS 1016692-08-2)
- 2-Fluoro-6-methoxy-4-methylbenzaldehyde (CAS 1362295-77-9)
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