(1-(2,4-Difluorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazol-4-yl)methanol CAS 618441-77-3

Purity 97%+In StockPharmaceutical Standards
CAS No.618441-77-3
Molecular FormulaC18H14F2N2O3
Molecular Weight344.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1-(2,4-Difluorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazol-4-yl)methanol CAS 618441-77-3 chemical structure

Description

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.

(1-(2,4-Difluorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazol-4-yl)methanol (CAS 618441-77-3), molecular formula C18H14F2N2O3 and molecular weight 344.31 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C18H14F2N2O3, (1-(2,4-Difluorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazol-4-yl)methanol contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), (1-(2,4-Difluorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazol-4-yl)methanol 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 FormulaC18H14F2N2O3
Molecular Weight344.31 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Halogen ContentF-containing
Nitrogen Atoms2

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