3,5-Bis(3-(difluoromethoxy)phenyl)-1h-pyrazole CAS 1159988-69-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1159988-69-8
Molecular FormulaC17H12F4N2O2
Molecular Weight352.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Bis(3-(difluoromethoxy)phenyl)-1h-pyrazole CAS 1159988-69-8 chemical structure

Description

The occurrence of 3,5-Bis(3-(difluoromethoxy)phenyl)-1h-pyrazole is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3,5-Bis(3-(difluoromethoxy)phenyl)-1h-pyrazole (CAS 1159988-69-8), molecular formula C17H12F4N2O2 and molecular weight 352.28 g/mol, is a CATO reference standard with documented purity and traceability.

3,5-Bis(3-(difluoromethoxy)phenyl)-1h-pyrazole (C17H12F4N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 3,5-Bis(3-(difluoromethoxy)phenyl)-1h-pyrazole 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 FormulaC17H12F4N2O2
Molecular Weight352.28 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Halogen ContentF-containing
Nitrogen Atoms2

Related Bis Standards

Recommended Standards

Why CATO?