4-Bromo-1'-isopropyl-3',5'-dimethyl-1H,1'H-[3,4'-bipyrazole]-5-carboxylic acid CAS 1491131-86-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1491131-86-2
Molecular FormulaC12H15BrN4O2
Molecular Weight327.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Bromo-1'-isopropyl-3',5'-dimethyl-1H,1'H-[3,4'-bipyrazole]-5-carboxylic acid CAS 1491131-86-2 chemical structure

Description

The occurrence of 4-Bromo-1'-isopropyl-3',5'-dimethyl-1H,1'H-[3,4'-bipyrazole]-5-carboxylic acid 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.

4-Bromo-1'-isopropyl-3',5'-dimethyl-1H,1'H-[3,4'-bipyrazole]-5-carboxylic acid (CAS 1491131-86-2) is a high-purity analytical reference standard with the molecular formula C12H15BrN4O2 and a molecular weight of 327.18 g/mol.

The molecular framework of 4-Bromo-1'-isopropyl-3',5'-dimethyl-1H,1'H-[3,4'-bipyrazole]-5-carboxylic acid (C12H15BrN4O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. 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.

As a certified reference material (CRM), 4-Bromo-1'-isopropyl-3',5'-dimethyl-1H,1'H-[3,4'-bipyrazole]-5-carboxylic acid 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 FormulaC12H15BrN4O2
Molecular Weight327.18 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Halogen ContentBr-containing
Nitrogen Atoms4

Related Bromo Standards

Recommended Standards

Why CATO?