Ethyl 5-amino-4-chloro-1-(2-cyanoethyl)-1H-pyrazole-3-carboxylate CAS 1427012-04-1
| CAS No. | 1427012-04-1 |
| Molecular Formula | C9H11ClN4O2 |
| Molecular Weight | 242.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 5-amino-4-chloro-1-(2-cyanoethyl)-1H-pyrazole-3-carboxylate (C9H11ClN4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Ethyl 5-amino-4-chloro-1-(2-cyanoethyl)-1H-pyrazole-3-carboxylate (CAS 1427012-04-1), a certified reference material (molecular formula C9H11ClN4O2, MW 242.66 g/mol) for analytical method development and quality control.
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.
CATO manufactures Ethyl 5-amino-4-chloro-1-(2-cyanoethyl)-1H-pyrazole-3-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 | C9H11ClN4O2 |
| Molecular Weight | 242.66 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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- 3-Amino-3-(3-chlorophenyl)propan-1-ol (CAS 68208-25-3)
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- Semaglutide impurity 72 (CAS CATO-C4X-222672)
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