Methyl 4-bromo-5-(o-tolyl)-1h-pyrazole-3-carboxylate CAS 1350465-36-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1350465-36-9
Molecular FormulaC12H11BrN2O2
Molecular Weight295.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 4-bromo-5-(o-tolyl)-1h-pyrazole-3-carboxylate CAS 1350465-36-9 chemical structure

Description

The occurrence of Methyl 4-bromo-5-(o-tolyl)-1h-pyrazole-3-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Methyl 4-bromo-5-(o-tolyl)-1h-pyrazole-3-carboxylate (CAS 1350465-36-9), a certified reference material (molecular formula C12H11BrN2O2, MW 295.13 g/mol) for analytical method development and quality control.

Structurally, Methyl 4-bromo-5-(o-tolyl)-1h-pyrazole-3-carboxylate (C12H11BrN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 295.13 g/mol, it falls into the medium-molecular-weight range. 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.

As a certified reference material (CRM), Methyl 4-bromo-5-(o-tolyl)-1h-pyrazole-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC12H11BrN2O2
Molecular Weight295.13 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-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.)1991
Halogen ContentBr-containing
Nitrogen Atoms2

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