(1-Methyl-3-phenyl-5-(p-tolyloxy)-1H-pyrazol-4-yl)methyl 2-chlorobenzoate CAS 318247-46-0

Purity 97%+In StockPharmaceutical Standards
CAS No.318247-46-0
Molecular FormulaC25H21ClN2O3
Molecular Weight432.90 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1-Methyl-3-phenyl-5-(p-tolyloxy)-1H-pyrazol-4-yl)methyl 2-chlorobenzoate CAS 318247-46-0 chemical structure

Description

The occurrence of (1-Methyl-3-phenyl-5-(p-tolyloxy)-1H-pyrazol-4-yl)methyl 2-chlorobenzoate is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(1-Methyl-3-phenyl-5-(p-tolyloxy)-1H-pyrazol-4-yl)methyl 2-chlorobenzoate (CAS 318247-46-0), molecular formula C25H21ClN2O3 and molecular weight 432.90 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (1-Methyl-3-phenyl-5-(p-tolyloxy)-1H-pyrazol-4-yl)methyl 2-chlorobenzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 432.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC25H21ClN2O3
Molecular Weight432.90 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

Recommended Standards

Why CATO?