Ethyl 4-chloro-1-methyl-1h-pyrazole-5-carboxylate CAS 400877-55-6
| CAS No. | 400877-55-6 |
| Molecular Formula | C7H9ClN2O2 |
| Molecular Weight | 188.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 4-chloro-1-methyl-1h-pyrazole-5-carboxylate is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ethyl 4-chloro-1-methyl-1h-pyrazole-5-carboxylate (CAS 400877-55-6), a certified reference material (molecular formula C7H9ClN2O2, MW 188.61 g/mol) for analytical method development and quality control.
Ethyl 4-chloro-1-methyl-1h-pyrazole-5-carboxylate (C7H9ClN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 4-chloro-1-methyl-1h-pyrazole-5-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H9ClN2O2 |
| Molecular Weight | 188.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 4-chloro-1-ethyl-1h-pyraZole-5-carbohydrazide (CAS 1001755-85-6)
- 4-chloro-1-ethyl-1h-pyraZole-3-carbohydrazide (CAS 1001755-86-7)
- Methyl 3-(4-chloro-1h-pyrazol-1-yl)propanoate (CAS 1002033-70-6)
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Recommended Standards
- ethyl 4-chloro-1-methyl-1H-pyrazole-3-carboxylate (CAS 942853-19-2)
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