(4-Chloro-3-methyl-1H-pyrazol-1-yl)methanol CAS 202842-95-3

Purity 97%+In StockPharmaceutical Standards
CAS No.202842-95-3
Molecular FormulaC5H7ClN2O
Molecular Weight146.57 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4-Chloro-3-methyl-1H-pyrazol-1-yl)methanol CAS 202842-95-3 chemical structure

Description

The occurrence of (4-Chloro-3-methyl-1H-pyrazol-1-yl)methanol is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies (4-Chloro-3-methyl-1H-pyrazol-1-yl)methanol (CAS 202842-95-3), a certified reference material (molecular formula C5H7ClN2O, MW 146.57 g/mol) for analytical method development and quality control.

Based on its molecular formula C5H7ClN2O, (4-Chloro-3-methyl-1H-pyrazol-1-yl)methanol contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 146.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 (4-Chloro-3-methyl-1H-pyrazol-1-yl)methanol 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 FormulaC5H7ClN2O
Molecular Weight146.57 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, 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
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2014
Halogen ContentCl-containing
Nitrogen Atoms2

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