methyl 5-(chloromethyl)-1-methyl-pyrazole-3-carboxylate CAS 2245938-86-5
| CAS No. | 2245938-86-5 |
| Molecular Formula | C7H13ClN2O2 |
| Molecular Weight | 192.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
methyl 5-(chloromethyl)-1-methyl-pyrazole-3-carboxylate (CAS 2245938-86-5) is a high-purity analytical reference standard with the molecular formula C7H13ClN2O2 and a molecular weight of 192.64 g/mol.
The molecular framework of methyl 5-(chloromethyl)-1-methyl-pyrazole-3-carboxylate (C7H13ClN2O2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), methyl 5-(chloromethyl)-1-methyl-pyrazole-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H13ClN2O2 |
| Molecular Weight | 192.64 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.) | 1998 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related methyl Standards
- 1-(3-(Chloromethyl)phenyl)-1H-pyrazole (CAS 1015939-93-1)
- 1-(2-(Chloromethyl)phenyl)-1H-imidazole (CAS 117296-93-2)
- 1-[3-(Chloromethyl)phenyl]imidazole (CAS 129747-33-7)
- 4-(Chloromethyl)-1-phenyl-1H-imidazole (CAS 1314935-79-9)
- 1-[4-(Chloromethyl)phenyl]-1H-pyrazole (CAS 143426-52-2)
- 2-(Chloromethyl)-1,4,8-trioxaspiro[4.5]decane (CAS 1551315-59-3)
- 3-(3-(Chloromethyl)phenyl)-1H-pyrazole (CAS 1936065-02-9)
- 1-(4-(Chloromethyl)phenyl)-1H-imidazole (CAS 789445-30-3)
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