Ethyl 2-(5-chloro-1H-pyrazol-1-yl)acetate CAS 1427010-32-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1427010-32-9
Molecular FormulaC7H9ClN2O2
Molecular Weight188.61 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-(5-chloro-1H-pyrazol-1-yl)acetate CAS 1427010-32-9 chemical structure

Description

The occurrence of Ethyl 2-(5-chloro-1H-pyrazol-1-yl)acetate 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 2-(5-chloro-1H-pyrazol-1-yl)acetate (CAS 1427010-32-9), a certified reference material (molecular formula C7H9ClN2O2, MW 188.61 g/mol) for analytical method development and quality control.

The molecular framework of Ethyl 2-(5-chloro-1H-pyrazol-1-yl)acetate (C7H9ClN2O2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 2-(5-chloro-1H-pyrazol-1-yl)acetate 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 FormulaC7H9ClN2O2
Molecular Weight188.61 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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 AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentCl-containing
Nitrogen Atoms2

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