1-[(3-Chlorophenyl)methyl]-4-nitro-1h-pyrazole CAS 957489-39-3

Purity 97%+In StockPharmaceutical Standards
CAS No.957489-39-3
Molecular FormulaC10H8ClN3O2
Molecular Weight237.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-[(3-Chlorophenyl)methyl]-4-nitro-1h-pyrazole CAS 957489-39-3 chemical structure

Description

The occurrence of 1-[(3-Chlorophenyl)methyl]-4-nitro-1h-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, 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 1-[(3-Chlorophenyl)methyl]-4-nitro-1h-pyrazole (CAS 957489-39-3), a certified reference material (molecular formula C10H8ClN3O2, MW 237.64 g/mol) for analytical method development and quality control.

1-[(3-Chlorophenyl)methyl]-4-nitro-1h-pyrazole (C10H8ClN3O2) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC10H8ClN3O2
Molecular Weight237.64 g/mol
AppearancePale yellow to 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms3

Related Chlorophenyl Standards

Recommended Standards

Why CATO?